Tetrasubstituted oxathiazine derivatives, method for producing them, their use as medicine and drug containing said derivatives and the use thereof

ABSTRACT

The invention relates to the compounds of formula (I) and to the physiologically acceptable salts thereof. Said compounds are suitable e.g. for the treatment of hyperglycemia.

Tetrasubstituted oxathiazine derivatives, method for producing them, their use as medicine and drug containing said derivatives and the use thereof.

The invention relates to substituted oxathiazine derivatives and to the physiologically compatible salts thereof.

It was an object of the invention to provide compounds which display a therapeutically utilizable action. More particularly, it was a further object to find novel compounds suitable for treatment of diabetes, hyperglycemia, insulin resistance, obesity or lipid metabolism disorders.

The invention therefore relates to the compound of the formula I

in which

-   L is R1, —CH(R10)(R11); -   R10, R11 are each independently H, F, Cl, Br, I, OH, CF₃, CHF₂,     CH₂F, NO₂, CN, OCF₃, OCHF₂, O—(C₁-C₆)-alkyl, (C₁-C₆)-alkyl, NH₂,     NH(C₁-C₆)-alkyl, N((C₁-C₆)-alkyl)₂, COOH, COO—(C₁-C₆)-alkyl, CONH₂,     CONH(C₁-C₆)-alkyl, CON((C₁-C₆)-alkyl)₂, SF₅, (C₁-C₆)-alkylene-(R6),     (C₃-C₈)-cycloalkylene-(R6),     (C₁-C₆)-alkylene-(C₃-C₈)-cycloalkylene-(R6), (C₆-C₁₀)-aryl,     (C₁-C₆)-alkylene-(C₆-C₁₀)-aryl, —(C₆-C₁₀)-heteroaryl,     (C₁-C₆)-alkylene-(C₆-C₁₀)-heteroaryl;     -   where the aryl radical or heteroaryl radical may be mono- to         trisubstituted by F, Cl, Br, I, OH, CF₃, CHF₂, CH₂F, NO₂, CN,         OCF₃, OCHF₂, O—(C₁-C₆)-alkyl, (C₁-C₆)-alkyl, NH₂,         NH(C₁-C₆)-alkyl, N((C₁-C₆)-alkyl)₂, SO₂—CH₃, SO₂—NH₂,         SO₂—NH(C₁-C₆)-alkyl, SO₂—N((C₁-C₆)-alkyl)₂, COOH,         COO—(C₁-C₆)-alkyl, CONH₂, CONH(C₁-C₆)-alkyl,         CON((C₁-C₆)-alkyl)₂, SF₅; -   R6 is OH, CF₃, CHF₂, CH₂F, NO₂, CN, OCF₃, OCHF₂, O—(C₁-C₆)-alkyl,     (C₁-C₆)-alkyl, NH₂, NH(C₁-C₆)-alkyl, N((C₁-C₆)-alkyl)₂, SO₂—CH₃,     SO₂—NH₂, SO₂—NH(C₁-C₆)-alkyl, SO₂—N((C₁-C₆)-alkyl)₂, COOH,     COO—(C₁-C₆)-alkyl, CONH₂, CONH(C₁-C₆)-alkyl, CON((C₁-C₆)-alkyl)₂,     SF₅; -   R1 is (C₆-C₁₀)-aryl, (C₃-C₈)-cycloalkyl, (C₃-C₈)-carbocyclyl,     -   where the aryl radical, cycloalkyl radical or carbocyclyl         radical may be mono- to trisubstituted by F, Cl, Br, I, OH, CF₃,         CHF₂, CH₂F, NO₂, CN, OCF₃, OCHF₂, (C₁-C₆)-alkyl, NH₂,         NH(C₁-C₆)-alkyl, N((C₁-C₆)-alkyl)₂, SO₂—CH₃, SO₂—NH₂,         SO₂—NH(C₁-C₆)-alkyl, SO₂—N((C₁-C₆)-alkyl)₂, COOH,         COO—(C₁-C₆)-alkyl, CONH₂, CONH(C₁-C₆)-alkyl,         CON((C₁-C₆)-alkyl)₂, SF₅; -   R2, R3, R4, R5 are each independently (C₁-C₆)-alkyl, CF₃, CHF₂,     CH₂F, (C₁-C₆)-alkylene-OH, (C₁-C₆)-alkylene-O—(C₁-C₆)-alkyl,     (C₆-C₁₀)-aryl, (C₁-C₆)-alkylene-O—(C₆-C₁₀)-aryl, or R2 and R3 or R4     and R5, together with the carbon atom to which they are bonded form     a 3-8-membered saturated carbocyclic or heterocyclic ring which may     contain up to 2 further heteroatoms from the group of N, O and S;     and pharmaceutically acceptable salts thereof.

Preference is given to compounds of the formula I in which:

-   L is R1, —CH(R10)(R11); -   R10, R11 are each independently F, Cl, Br, I, OH, CF₃, CHF₂, CH₂F,     NO₂, CN, OCF₃, OCHF₂, O—(C₁-C₆)-alkyl, (C₁-C₆)-alkyl, NH₂,     NH(C₁-C₆)-alkyl, N((C₁-C₆)-alkyl)₂, COOH, COO—(C₁-C₆)-alkyl, CONH₂,     CONH(C₁-C₆)-alkyl, CON((C₁-C₆)-alkyl)₂, SF₅, (C₁-C₆)-alkylene-(R6),     (C₃-C₈)-cycloalkylene-(R6),     (C₁-C₆)-alkylene-(C₃-C₈)-cycloalkylene-(R6), (C₆-C₁₀)-aryl,     (C₁-C₆)-alkylene-(C₆-C₁₀)-aryl, —(C₆-C₁₀)-heteroaryl,     (C₁-C₆)-alkylene-(C₆-C₁₀)-heteroaryl;     -   where the aryl radical or heteroaryl radical may be mono- to         trisubstituted by F, Cl, Br, I, OH, CF₃, CHF₂, CH₂F, NO₂, CN,         OCF₃, OCHF₂, O—(C₁-C₆)-alkyl, (C₁-C₆)-alkyl, NH₂,         NH(C₁-C₆)-alkyl, N((C₁-C₆)-alkyl)₂, SO₂—CH₃, SO₂—NH₂,         SO₂—NH(C₁-C₆)-alkyl, SO₂—N((C₁-C₆)-alkyl)₂, COOH,         COO—(C₁-C₆)-alkyl, CONH₂, CONH(C₁-C₆)-alkyl,         CON((C₁-C₆)-alkyl)₂, SF₅; -   R6 is OH, CF₃, CHF₂, CH₂F, NO₂, CN, OCF₃, OCHF₂, O—(C₁-C₆)-alkyl,     (C₁-C₆)-alkyl, NH₂, NH(C₁-C₆)-alkyl, N((C₁-C₆)-alkyl)₂, SO₂—CH₃,     SO₂—NH₂, SO₂—NH(C₁-C₆)-alkyl, SO₂—N((C₁-C₆)-alkyl)₂, COOH,     COO—(C₁-C₆)-alkyl, CONH₂, CONH(C₁-C₆)-alkyl, CON((C₁-C₆)-alkyl)₂,     SF₅; -   R1 is (C₃-C₈)-cycloalkyl, (C₃-C₈)-carbocyclyl,     -   where the cycloalkyl radical or carbocyclyl radical may be mono-         to trisubstituted by F, Cl, Br, I, OH, CF₃, CHF₂, CH₂F, NO₂, CN,         OCF₃, OCHF₂, O—(C₁-C₆)-alkyl, (C₁-C₆)-alkyl, NH₂,         NH(C₁-C₆)-alkyl, N((C₁-C₆)-alkyl)₂, SO₂—CH₃, SO₂—NH₂,         SO₂—NH(C₁-C₆)-alkyl, SO₂—N((C₁-C₆)-alkyl)₂, COOH,         COO—(C₁-C₆)-alkyl, CONH₂, CONH(C₁-C₆)-alkyl,         CON((C₁-C₆)-alkyl)₂, SF₅; -   R2, R3, R4, R5 are each independently (C₁-C₆)-alkyl, CF₃,     (C₁-C₆)-alkylene-O—(C₁-C₆)-alkyl or R2 and R3, or R4 and R5,     together with the carbon atom to which they are bonded form a     3-8-membered saturated carbocyclic or heterocyclic ring which may     contain up to 2 further heteroatoms from the group of N, O and S;     and pharmaceutically acceptable salts thereof.

Preference is further given to compounds of the formula I in which:

-   L is R1, —CH(R10)(R11); -   R10, R11 are each independently (C₁-C₆)-alkyl,     (C₁-C₆)-alkylene-(R6), (C₆-C₁₀)-aryl, (C₆-C₁₀)-heteroaryl;     -   where the aryl radical or heteroaryl radical may be mono- to         trisubstituted by F, Cl, Br, I, OH, CF₃, CHF₂, CH₂F, NO₂, CN,         OCF₃, OCHF₂, O—(C₁-C₆)-alkyl, (C₁-C₆)-alkyl, NH₂,         NH(C₁-C₆)-alkyl, N((C₁-C₆)-alkyl)₂, SO₂—CH₃, SO₂—NH₂,         SO₂—NH(C₁-C₆)-alkyl, SO₂—N((C₁-C₆)-alkyl)₂, COOH,         COO—(C₁-C₆)-alkyl, CONH₂, CONH(C₁-C₆)-alkyl,         CON((C₁-C₆)-alkyl)₂, SF₅; -   R6 is OH, SO₂—NH₂; -   R1 is (C₃-C₈)-cycloalkyl, (C₃-C₈)-carbocyclyl,     -   where the cycloalkyl radical or carbocyclyl radical may be mono-         to trisubstituted by F, Cl, Br, I, OH, CF₃, CHF₂, CH₂F, NO₂, CN,         OCF₃, OCHF₂, O—(C₁-C₆)-alkyl, (C₁-C₆)-alkyl, NH₂,         NH(C₁-C₆)-alkyl, N((C₁-C₆)-alkyl)₂, SO₂—CH₃, SO₂—NH₂,         SO₂—NH(C₁-C₆)-alkyl, SO₂—N((C₁-C₆)-alkyl)₂, COOH,         COO—(C₁-C₆)-alkyl, CONH₂, CONH(C₁-C₆)-alkyl,         CON((C₁-C₆)-alkyl)₂, SF₅; -   R2, R3, R4, R5 are each independently (C₁-C₆)-alkyl, CF₃,     (C₁-C₆)-alkylene-O—(C₁-C₆)-alkyl or R2 and R3, or R4 and R5,     together with the carbon atom to which they bonded form a     3-8-membered saturated carbocyclic or heterocyclic ring which may     contain up to 2 further heteroatoms from the group of N, O and S;     and pharmaceutically acceptable salts thereof.

Preference is further given to compounds of the formula I in which:

-   L is R1, —CH(R10)(R11); -   R10 is (C₁-C₆)-alkylene-(R6), -   R11 is (C₆-C₁₀)-aryl, (C₆-C₁₀)-heteroaryl, where the aryl radical or     heteroaryl radical may be mono- to trisubstituted by F, Cl, Br, CN; -   R6 is OH, SO₂—NH₂; -   R1 is (C₃-C₈)-cycloalkyl, (C₃-C₈)-carbocyclyl,     -   where the cycloalkyl radical or carbocyclyl radical may be mono-         to trisubstituted by F, Cl, Br, OH; -   R2, R3 are each independently (C₁-C₆)-alkyl, CF₃,     (C₁-C₆)-alkylene-O—(C₁-C₆)-alkyl or R2 and R3 together with the     carbon atom to which they bonded form a 3-8-membered saturated     carbocyclic or heterocyclic ring which may contain up to 2 further     heteroatoms from the group of N, O and S; -   R4, R5 are each independently (C₁-C₆)-alkyl, CF₃,     (C₁-C₆)-alkylene-O—(C₁-C₆)-alkyl, or R4 and R5 together with the     carbon atom to which they are bonded form a 3-8-membered saturated     carbocyclic ring;     and pharmaceutically acceptable salts thereof.

If radicals or substituents occur more than once in the compounds of the formula I (for example R6), they may each independently be defined as specified and be the same or different.

The invention relates to compounds of the formula I in the form of their tautomers, racemates, racemic mixtures, stereoisomer mixtures, pure stereoisomers, diastereoisomer mixtures and pure diastereoisomers. The mixtures are separated, for example, by a chromatographic route.

Owing to their higher water solubility compared to the starting or base compounds, pharmaceutically acceptable salts are particularly suitable for medical applications. These salts must have a pharmaceutically acceptable anion or cation. Suitable pharmaceutically acceptable acid addition salts of the compounds of the invention are salts of inorganic acids such as hydrochloric acid, hydrobromic acid, phosphoric acid, metaphosphoric acid, nitric acid and sulfuric acid, and of organic acids, for example acetic acid, benzenesulfonic acid, benzoic acid, citric acid, ethanesulfonic acid, fumaric acid, gluconic acid, glycolic acid, isethionic acid, lactic acid, lactobionic acid, maleic acid, malic acid, methanesulfonic acid, succinic acid, p-toluenesulfonic acid and tartaric acid. Suitable pharmaceutically acceptable basic salts are ammonium salts, alkali metal salts (such as sodium and potassium salts), alkaline earth metal salts (such as magnesium and calcium salts), trometamol (2-amino-2-hydroxymethyl-1,3-propanediol), diethanolamine, lysine or ethylenediamine.

Salts with a pharmaceutically unacceptable anion, for example trifluoroacetate, likewise belong within the framework of the invention as useful intermediates for the preparation or purification of pharmaceutically acceptable salts and/or for use in nontherapeutic, for example in vitro, applications.

The inventive compounds may also exist in various polymorphic forms, for example as amorphous and crystalline polymorphic forms. All polymorphic forms of the inventive compounds are within the scope of the invention and are a further aspect of the invention.

All references to “compound(s) of formula I” hereinafter refer to compound(s) of the formula I as described above, and the salts and solvates thereof, as described herein.

An alkyl radical is understood to mean a straight-chain or branched hydrocarbon chain having one free valence, for example methyl, ethyl, isopropyl, tert-butyl, hexyl, heptyl, octyl. The alkyl radicals may be mono- or polysubstituted as described above.

An alkylene radical is understood to mean a straight-chain or branched hydrocarbon chain having two free valences, for example methylene, ethylene, isopropylene, tert-butylene, hexylene, heptylene, octylene. The alkylene radicals may be mono- or polysubstituted as described above.

A carbocycle or carbocyclyl radical is understood to mean a ring in saturated or partially unsaturated form (with one or two double bonds), formed exclusively from carbon atoms.

An aryl radical is understood to mean a phenyl, naphthyl, biphenyl, tetrahydronaphthyl, alpha- or beta-tetralonyl, indanyl or indan-1-onyl radical.

The aryl radicals may be mono- or polysubstituted by suitable groups as described above.

“Heterocycle” and “heterocyclic radical” are understood to mean rings and ring systems which, apart from carbon, also contain heteroatoms, for example nitrogen, oxygen or sulfur. In addition, this definition also includes ring systems in which the heterocycle or the heterocyclic radical is fused to a further ring or ring system. The heterocycle or the heterocyclic radical may be saturated, partly saturated or aromatic.

Suitable “heterocycles” or “heterocyclic radicals” are acridinyl, azepanyl, azocinyl, benzimidazolyl, benzofuryl, benzothienyl, benzothiophenyl, benzoxazolyl, benzothiazolyl, benzotriazolyl, benzotetrazolyl, benzisoxazolyl, benzisothiazolyl, benzimidazalinyl, carbazolyl, 4aH-carbazolyl, carbolinyl, quinazolinyl, quinolinyl, 4H-quinolizinyl, quinoxalinyl, quinuclidinyl, chromanyl, chromenyl, cinnolinyl, decahydroquinolinyl, 2H,6H-1,5,2-dithiazinyl, dihydrofuro[2,3-b]-tetrahydrofuran, 5,6-dihydro-4H-cyclopentathiazol-2-yl, 4,5-dihydrothiazol-2-yl, furyl, furazanyl, imidazolidinyl, imidazolinyl, imidazolyl, 1H-indazolyl, indolinyl, indolizinyl, indolyl, 3H-indolyl, isobenzofuranyl, isochromanyl, isoindazolyl, isoindolinyl, isoindolyl, isoquinolinyl (benzimidazolyl), isothiazolyl, isoxazolyl, morpholinyl, naphthyridinyl, octahydroisoquinolinyl, oxadiazolyl, 1,2,3-oxadiazolyl, 1,2,4-oxadiazolyl, 1,2,5-oxadiazolyl, 1,3,4-oxadiazolyl, oxazolidinyl, oxazolyl, oxazolidinyl, pyrimidinyl, phenanthridinyl, phenanthrolinyl, phenazinyl, phenothiazinyl, phenoxathiinyl, phenoxazinyl, phthalazinyl, piperazinyl, piperidinyl, pteridinyl, purinyl, pyranyl, pyrazinyl, pyroazolidinyl, pyrazolinyl, pyrazolyl, pyridazinyl, pyridooxazole, pyridoimidazole, pyridothiazole, pyridinyl, pyridyl, pyrimidinyl, pyrrolidinyl, pyrrolinyl, 2H-pyrrolyl, pyrrolyl, 4,5,6,7-tetrahydrobenzooxazol-2-yl, 4,5,6,7-tetrahydro-benzothiazol-2-yl, 4,5,6,7-tetrahydrobenzoimidazol-2-yl, 4,5,6,7-tetrahydro-pyrazolo[1,5-a]pyridin-2-yl, tetrahydrofuranyl, tetrahydropyranyl, tetrahydroisoquinolinyl, tetrahydroquinolinyl, 6H-1,2,5-thiadazinyl, thiazolyl, 1,2,3-thiadiazolyl, 1,2,4-thiadiazolyl, 1,2,5-thiadiazolyl, 1,3,4-thiadiazolyl, thienyl, triazinyl, triazolyl, tetrazolyl, thiazolo[4,5-b]pyridinyl, thieno[2,3-d]thiazol-2-yl, tropanyl and xanthenyl.

The heterocycles or heterocyclic radicals may be mono- or polysubstituted by suitable groups as described above.

The compound(s) of the formula I can also be administered in combination with further active ingredients.

The amount of a compound of the formula I required to achieve the desired biological effect depends on a number of factors, for example the specific compound chosen, the intended use, the mode of administration and the clinical condition of the patient. The daily dose is generally in the range from 0.3 mg to 100 mg (typically from 3 mg to 50 mg) per day and per kilogram of body weight, for example 3-10 mg/kg/day. An intravenous dose may be, for example, in the range from 0.3 mg to 1.0 mg/kg, which can suitably be administered as infusion of 10 ng to 100 ng per kilogram per minute. Suitable infusion solutions for these purposes may contain, for example, 0.1 ng to 10 mg, typically 1 ng to 10 mg, per milliliter. Single doses may contain, for example, 1 mg to 10 g of the active ingredient. Thus, ampoules for injections may contain, for example, from 1 mg to 100 mg, and orally administrable single-dose formulations, for example tablets or capsules, may contain, for example, from 1.0 to 1000 mg, typically from 10 to 600 mg. For treatment of the abovementioned conditions, the compounds of the formula I themselves may be used as the compound, but they are preferably present with a compatible carrier in the form of a pharmaceutical composition. The carrier must of course be acceptable in the sense that it is compatible with the other constituents of the composition and is not harmful to the patient's health. The carrier may be a solid or a liquid or both and is preferably formulated with the compound as a single dose, for example as a tablet, which may contain from 0.05% to 95% by weight of the active ingredient. Other pharmaceutically active substances may likewise be present, including other compounds of formula I. The pharmaceutical compositions of the invention can be produced by one of the known pharmaceutical methods, which essentially consist of mixing the ingredients with pharmacologically acceptable carriers and/or excipients.

Inventive pharmaceutical compositions are those suitable for oral, rectal, topical, peroral (for example sublingual) and parenteral (for example subcutaneous, intramuscular, intradermal or intravenous) administration, although the most suitable mode of administration depends in each individual case on the nature and severity of the condition to be treated and on the nature of the compound of formula I used in each case. Coated formulations and coated slow-release formulations are also within the scope of the invention. Preference is given to acid- and gastric juice-resistant formulations. Suitable gastric juice-resistant coatings comprise cellulose acetate phthalate, polyvinyl acetate phthalate, hydroxypropylmethylcellulose phthalate and anionic polymers of methacrylic acid and methyl methacrylate.

Suitable pharmaceutical compounds for oral administration may be in the form of separate units, for example capsules, cachets, lozenges or tablets, each of which contains a defined amount of the compound of formula I; as powders or granules; as solution or suspension in an aqueous or nonaqueous liquid; or as an oil-in-water or water-in-oil emulsion. These compositions may, as already mentioned, be prepared by any suitable pharmaceutical method which includes a step in which the active ingredient and the carrier (which may consist of one or more additional ingredients) are brought into contact. The compositions are generally produced by uniform and homogeneous mixing of the active ingredient with a liquid and/or finely divided solid carrier, after which the product is shaped if necessary. For example, a tablet can be produced by compressing or molding a powder or granules of the compound, where appropriate with one or more additional ingredients. Compressed tablets can be produced by tableting the compound in free-flowing form such as, for example, a powder or granules, where appropriate mixed with a binder, glidant, inert diluent and/or one (or more) surfactant(s)/dispersant(s) in a suitable machine. Molded tablets can be produced by molding the pulverulent compound moistened with an inert liquid diluent in a suitable machine.

Pharmaceutical compositions suitable for peroral (sublingual) administration include lozenges which contain a compound of formula I with a flavoring, typically sucrose, and gum arabic or tragacanth, and pastilles which comprise the compound in an inert base such as gelatin and glycerol or sucrose and gum arabic.

Pharmaceutical compositions suitable for parenteral administration comprise preferably sterile aqueous preparations of a compound of formula I, which are preferably isotonic with the blood of the intended recipient. These preparations are preferably administered intravenously, although administration may also take place by subcutaneous, intramuscular or intradermal injection. These preparations can preferably be produced by mixing the compound with water and making the resulting solution sterile and isotonic with blood. Injectable inventive compositions generally contain from 0.1 to 5% by weight of the active compound.

Pharmaceutical compositions suitable for rectal administration are preferably in the form of single-dose suppositories. These can be produced by mixing a compound of formula I with one or more conventional solid carriers, for example cocoa butter, and shaping the resulting mixture.

Pharmaceutical compositions suitable for topical use on the skin are preferably in the form of ointment, cream, lotion, paste, spray, aerosol or oil. Carriers which can be used are petrolatum, lanolin, polyethylene glycols, alcohols and combinations of two or more of these substances. The active ingredient is generally present in a concentration of 0.1 to 15% by weight of the composition, for example 0.5 to 2%.

Transdermal administration is also possible. Pharmaceutical compositions suitable for transdermal uses may be in the form of single patches which are suitable for long-term close contact with the patient's epidermis. Such patches suitably contain the active ingredient in an aqueous solution which is buffered where appropriate, dissolved and/or dispersed in an adhesive or dispersed in a polymer. A suitable active ingredient concentration is about 1% to 35%, preferably about 3% to 15%. A particular option is for the active ingredient to be released by electrotransport or iontophoresis as described, for example, in Pharmaceutical Research, 2(6): 318 (1986).

Further suitable active ingredients for the combination products are:

All antidiabetics mentioned in the Rote Liste 2009, chapter 12; all weight-reducing agents/appetite suppressants mentioned in the Rote Liste 2009, chapter 1; all diuretics mentioned in the Rote Liste 2009, chapter 36; all lipid-lowering agents mentioned in the Rote Liste 2009, chapter 58. They can be combined with the inventive compound of the formula I, especially for a synergistic improvement in action. The active ingredient combination can be administered either by separate administration of the active ingredients to the patient or in the form of combination products in which a plurality of active ingredients are present in one pharmaceutical preparation. When the active ingredients are administered by separate administration of the active ingredients, this can be done simultaneously or successively. Most of the active ingredients mentioned hereinafter are disclosed in the USP Dictionary of USAN and International Drug Names, US Pharmacopeia, Rockville 2006.

Antidiabetics include insulin and insulin derivatives, for example Lantus® (see www.lantus.com) or HMR 1964 or Levemir® (insulin detemir), Humalog® (Insulin Lispro), Humulin®, VIAject™, or those as described in WO2005005477 (Novo Nordisk), fast-acting insulins (see U.S. Pat. No. 6,221,633), inhalable insulins, for example Exubera®, Nasulin™, or oral insulins, for example IN-105 (Nobex) or Oral-lyn™ (Generex Biotechnology), or Technosphere® Insulin (MannKind) or Cobalamin™ oral insulin, or insulins as described in WO2007128815, WO2007128817, or insulins which can be administered transdermally;

GLP-1 derivatives and GLP-1 agonists, for example exenatide, liraglutide, or those which have been disclosed in WO 98/08871, WO2005027978, WO2006037811, WO2006037810 by Novo Nordisk AIS, in WO 01/04156 by Zealand or in WO 00/34331 by Beaufour-Ipsen, pramlintide acetate (Symlin; Amylin Pharmaceuticals), AVE-0010, BIM-51077 (R-1583, ITM-077), PC-DAC:Exendin-4 (an exendin-4 analog which is bonded covalently to recombinant human albumin), CVX-73, CVX-98 and CVx-96 (GLP-1 analog which is bonded covalently to a monoclonal antibody which has specific binding sites for the GLP-1 peptide), CNTO-736 (a GLP-1 analog which is bonded to a domain which includes the Fc portion of an antibody), PGC-GLP-1 (GLP-1 bonded to a nanocarrier), agonists, as described, for example, in D. Chen et al., Proc. Natl. Acad. Sci. USA 104 (2007) 943, those as described in WO2006124529, WO2007124461, peptides, for example obinepitide (TM-30338), amylin receptor agonists, as described, for example, in WO2007104789, analogs of the human GLP-1, as described in WO2007120899, and orally active hypoglycemic ingredients.

Antidiabetics also include agonists of the glucose-dependent insulinotropic polypeptide (GIP) receptor, as described, for example, in WO2006121860.

Antidiabetics also include analogs and derivatives of fibroblast growth factor 21 (FGF-21).

The orally active hypoglycemic ingredients preferably include sulfonylureas,

biguanidines,

meglitinides,

oxadiazolidinediones,

thiazolidinediones,

PPAR and RXR modulators,

glucosidase inhibitors,

inhibitors of glycogen phosphorylase,

glucagon receptor antagonists,

glucokinase activators,

inhibitors of fructose 1,6-bisphosphatase,

modulators of glucose transporter 4 (GLUT4),

inhibitors of glutamine:fructose-6-phosphate amidotransferase (GFAT),

GLP-1 agonists,

potassium channel openers, for example pinacidil, cromakalim, diazoxide, or those as described in R. D. Can et al., Diabetes 52, 2003, 2513-2518, in J. B. Hansen et al., Current Medicinal Chemistry 11, 2004, 1595-1615, in T. M. Tagmose et al., J. Med. Chem. 47, 2004, 3202-3211 or in M. J. Coghlan et al., J. Med. Chem. 44, 2001, 1627-1653, or those which have been disclosed in WO 97/26265 and WO 99/03861 by Novo Nordisk A/S,

active ingredients which act on the ATP-dependent potassium channel of the beta cells,

inhibitors of dipeptidyl peptidase-W (DPP-IV),

insulin sensitizers,

inhibitors of liver enzymes involved in stimulating gluconeogenesis and/or glycogenolysis,

modulators of glucose uptake, of glucose transport and of glucose reabsorption,

modulators of sodium-dependent glucose transporter 1 or 2 (SGLT1, SGLT2),

inhibitors of 11-beta-hydroxysteroid dehydrogenase-1 (11β-HSD1),

inhibitors of protein tyrosine phosphatase-1B (PTP-1B),

nicotinic acid receptor agonists,

inhibitors of hormone-sensitive or endothelial lipases,

inhibitors of acetyl-CoA carboxylase (ACC1 and/or ACC2) or

inhibitors of GSK-3 beta.

Also included are compounds which modify the lipid metabolism, such as active antihyperlipidemic ingredients and active antilipidemic ingredients,

HMG-CoA reductase inhibitors,

farnesoid X receptor (FXR) antagonists,

fibrates,

cholesterol reabsorption inhibitors,

CETP inhibitors,

bile acid absorption inhibitors,

MTP inhibitors,

estrogen receptor gamma agonists (ERR agonists),

sigma-1 receptor antagonists,

antagonists of the somatostatin 5 receptor (SST5 receptor);

compounds which reduce food intake, and

compounds which increase thermogenesis.

In one embodiment of the invention, the compound of the formula I is administered in combination with insulin.

In one embodiment, the compound of the formula I is administered in combination with an active ingredient which acts on the ATP-dependent potassium channel of the beta cells, for example sulfonylureas, for example tolbutamide, glibenclamide, glipizide, gliclazide or glimepiride.

In one embodiment, the compound of the formula I is administered in combination with a tablet which comprises both glimepiride, which is released rapidly, and metformin, which is released over a longer period (as described, for example, in US2007264331).

In one embodiment, the compound of the formula I is administered in combination with a biguanide, for example metformin.

In another embodiment, the compound of the formula I is administered in combination with a meglitinide, for example repaglinide, nateglinide or mitiglinide.

In a further embodiment, the compound of the formula I is administered with a combination of mitiglinide with a glitazone, e.g. pioglitazone hydrochloride.

In a further embodiment, the compound of the formula I is administered with a combination of mitiglinide with an alpha-glucosidase inhibitor.

In a further embodiment, the compound of the formula I is administered in combination with antidiabetic compounds, as described in WO2007095462, WO2007101060, WO2007105650.

In a further embodiment, the compound of the formula I is administered in combination with antihypoglycemic compounds, as described in WO2007137008.

In one embodiment, the compound of the formula I is administered in combination with a thiazolidinedione, for example troglitazone, ciglitazone, pioglitazone, rosiglitazone or the compounds disclosed in WO 97/41097 by Dr. Reddy's Research Foundation, especially 5-[[4-[(3,4-dihydro-3-methyl-4-oxo-2-quinazolinylmethoxy]phenyl]methyl]-2,4-thiazolidinedione.

In one embodiment of the invention, the compound of the formula I is administered in combination with a PPAR gamma agonist, for example rosiglitazone, pioglitazone, JTT-501, G1 262570, R-483, CS-011 (rivoglitazone), DRL-17564, DRF-2593 (balaglitazone), or those as described in WO2007060992, WO2007100027, WO2007103252, WO2007122970.

In one embodiment of the invention, the compound of the formula I is administered in combination with Competact™, a solid combination of pioglitazone hydrochloride with metformin hydrochloride.

In one embodiment of the invention, the compound of the formula I is administered in combination with Tandemact™, a solid combination of pioglitazone with glimepiride. In a further embodiment of the invention, the compound of the formula I is administered in combination with a solid combination of pioglitazone hydrochloride with an angiotensin II agonist, for example TAK-536.

In one embodiment of the invention, the compound of the formula I is administered in combination with a PPAR alpha agonist or mixed PPAR alpha/PPAR delta agonist, for example GW9578, GW-590735, K-111, LY-674, KRP-101, DRF-10945, LY-518674, CP-900691, BMS-687453, BMS-711939, or those as described in WO2001040207, WO2002096894, WO2005097076, WO2007056771, WO2007087448, WO2007089667, WO2007089557, WO2007102515, WO2007103252, JP2007246474, WO2007118963, WO2007118964, WO2007126043.

In one embodiment of the invention, the compound of the formula I is administered in combination with a mixed PPAR alpha/gamma agonist, for example naveglitazar, LY-510929, ONO-5129, E-3030, AVE 8042, AVE 8134, AVE 0847, CKD-501 (lobeglitazone sulfate), MBX-213, or as described in WO 00/64888, WO 00/64876, WO03/020269, WO2007099553, US2007276041, WO2007085135, WO2007085136, or in J. P. Berger et al., TRENDS in Pharmacological Sciences 28(5), 244-251, 2005.

In one embodiment of the invention, the compound of the formula I is administered in combination with a PPAR delta agonist, for example GW-501516, or as described in WO2006059744, WO2006084176, WO2006029699, WO2007039172, WO2007039178, WO2007071766, WO2007101864, US2007244094, WO2007119887.

In one embodiment of the invention, the compound of the formula I is administered in combination with a pan-SPPARM (selective PPAR modulator alpha, gamma, delta), for example GFT-505.

In one embodiment, the compound of the formula I is administered in combination with metaglidasen or with MBX-2044 or other partial PPAR gamma agonists/antagonists.

In one embodiment, the compound of the formula I is administered in combination with an α-glucosidase inhibitor, for example miglitol or acarbose, or those as described, for example, in WO2007114532, WO2007140230.

In one embodiment, the compound of the formula I is administered in combination with an inhibitor of glycogen phosphorylase, for example PSN-357 or FR-258900, or those as described in WO2003084922, WO2004007455, WO2005073229-31, WO2005067932.

In one embodiment, the compound of the formula I is administered in combination with glucagon receptor antagonists, for example A-770077 or NNC-25-2504 or as described in WO2004100875, WO2005065680, WO2006086488, WO2007106181, WO2007111864, WO2007120270, WO2007120284, WO2007123581, WO2007136577.

In a further embodiment, the compound of the formula I is administered in combination with an antisense compound, e.g. ISIS-325568, which inhibits the production of the glucagon receptor.

In one embodiment, the compound of the formula I is administered in combination with activators of glucokinase, for example LY-2121260 (WO2004063179), PSN-105, PSN-110, GKA-50, or those as described, for example, in WO2004072031, WO2004072066, WO2005080360, WO2005044801, WO2006016194, WO2006058923, WO2006112549, WO2006125972, WO2007017549, WO2007017649, WO2007007910, WO2007007040-42, WO2007006760-61, WO2007006814, WO2007007886, WO2007028135, WO2007031739, WO2007041365, WO2007041366, WO2007037534, WO2007043638, WO2007053345, WO2007051846, WO2007051845, WO2007053765, WO2007051847, WO2007061923, WO2007075847, WO2007089512, WO2007104034, WO2007117381, WO2007122482, WO2007125103, WO2007125105, US2007281942.

In one embodiment, the compound of the formula I is administered in combination with an inhibitor of gluconeogenesis, for example FR-225654.

In one embodiment, the compound of the formula I is administered in combination with inhibitors of fructose 1,6-bisphosphatase (FBPase), for example CS-917 (MB-06322) or MB-07803, or those as described in WO2006023515, WO2006104030, WO2007014619, WO2007137962.

In one embodiment, the compound of the formula I is administered in combination with modulators of glucose transporter 4 (GLUT4), for example KST-48 (D.-O. Lee et al.: Arzneim.-Forsch. Drug Res. 54 (12), 835 (2004)).

In one embodiment, the compound of the formula I is administered in combination with inhibitors of glutamine:fructose-6-phosphate amidotransferase (GFAT), as described, for example, in WO2004101528.

In one embodiment, the compound of the formula I is administered in combination with inhibitors of dipeptidyl peptidase IV (DPP-IV), for example vildagliptin (LAF-237), sitagliptin (MK-0431), sitagliptin phosphate, saxagliptin (BMS-477118), GSK-823093, PSN-9301, SYR-322, SYR-619, TA-6666, TS-021, GRC-8200, GW-825964×, KRP-104, DP-893, ABT-341, ABT-279 or another salt thereof, S-40010, S-40755, PF-00734200, BI-1356, PHX-1149, alogliptin, or those compounds as described in WO2003074500, WO2003106456, WO2004037169, WO200450658, WO2005037828, WO2005058901, WO2005012312, WO2005/012308, WO2006039325, WO2006058064, WO2006015691, WO2006015701, WO2006015699, WO2006015700, WO2006018117, WO2006099943, WO2006099941, JP2006160733, WO2006071752, WO2006065826, WO2006078676, WO2006073167, WO2006068163, WO2006085685, WO2006090915, WO2006104356, WO2006127530, WO2006111261, WO2007015767 (LY-2463665), WO2007024993, WO2007029086, WO2007063928, WO2007070434, WO2007071738, WO2007077508, WO2007087231, WO2007097931, WO2007099385, WO2007100374, WO2007112347, WO2007112669, WO2007113226, WO2007113634, WO2007115821, WO2007116092, US2007259900, EP1852108, US2007270492, WO2007126745, WO2007136603.

In one embodiment, the compound of the formula I is administered in combination with Janumet™, a solid combination of sitagliptin phosphate with metformin hydrochloride.

In one embodiment, the compound of the formula I is administered in combination with Eucreas®, a solid combination of vildagliptin with metformin hydrochloride.

In one embodiment, the compound of the formula I is administered in combination with a combination of a DPP-IV inhibitor with omega-3 fatty acids or omega-3 fatty acid esters, as described, for example, in WO2007128801.

In one embodiment, the compound of the formula I is administered in combination with a substance which enhances insulin secretion, for example KCP-265 (WO2003097064), or those as described in WO2007026761.

In one embodiment, the compound of the formula I is administered in combination with agonists of the glucose-dependent insulinotropic receptor (GDIR), for example APD-668.

In one embodiment of the invention, the compound of the formula I is administered in combination with an ATP citrate lyase inhibitor, for example SB-204990.

In one embodiment, the compound of the formula I is administered in combination with modulators of the sodium-dependent glucose transporter 1 or 2 (SGLT1, SGLT2), for example KGA-2727, T-1095, SGL-0010, AVE 2268, SAR 7226, SGL-5083, SGL-5085, SGL-5094, ISIS-388626, sergliflozin or dapagliflozin, or as described, for example, in WO2004007517, WO200452903, WO200452902, PCT/EP2005/005959, WO2005085237, JP2004359630, WO2005121161, WO2006018150, WO2006035796, WO2006062224, WO2006058597, WO2006073197, WO2006080577, WO2006087997, WO2006108842, WO2007000445, WO2007014895, WO2007080170, WO2007093610, WO2007126117, WO2007128480, WO2007129668, US2007275907, WO2007136116, or by A. L. Handlon in Expert Opin. Ther. Patents (2005) 15(11), 1531-1540.

In one embodiment, the compound of the formula I is administered in combination with inhibitors of 11-beta-hydroxysteroid dehydrogenase 1 (11β-HSD1), for example BVT-2733, JNJ-25918646, INCB-13739, DIO-92 ((−)-ketoconazole) or those as described, for example, in WO200190090-94, WO200343999, WO2004112782, WO200344000, WO200344009, WO2004112779, WO2004113310, WO2004103980, WO2004112784, WO2003065983, WO2003104207, WO2003104208, WO2004106294, WO2004011410, WO2004033427, WO2004041264, WO2004037251, WO2004056744, WO2004058730, WO2004065351, WO2004089367, WO2004089380, WO2004089470-71, WO2004089896, WO2005016877, WO2005063247, WO2005097759, WO2006010546, WO2006012227, WO2006012173, WO2006017542, WO2006034804, WO2006040329, WO2006051662, WO2006048750, WO2006049952, WO2006048331, WO2006050908, WO2006024627, WO2006040329, WO2006066109, WO2006074244, WO2006078006, WO2006106423, WO2006132436, WO2006134481, WO2006134467, WO2006135795, WO2006136502, WO2006138508, WO2006138695, WO2006133926, WO2007003521, WO2007007688, US2007066584, WO2007029021, WO2007047625, WO2007051811, WO2007051810, WO2007057768, WO2007058346, WO2007061661, WO2007068330, WO2007070506, WO2007087150, WO2007092435, WO2007089683, WO2007101270, WO2007105753, WO2007107470, WO2007107550, WO2007111921, US2007207985, US2007208001, WO2007115935, WO2007118185, WO2007122411, WO2007124329, WO2007124337, WO2007124254, WO2007127688, WO2007127693, WO2007127704, WO2007127726, WO2007127763, WO2007127765, WO2007127901, US2007270424, JP2007291075, WO2007130898, WO2007135427.

In one embodiment, the compound of the formula I is administered in combination with inhibitors of protein tyrosine phosphatase 1B (PTP-1B), as described, for example, in WO200119830-31, WO200117516, WO2004506446, WO2005012295, WO2005116003, WO2005116003, WO2006007959, DE 10 2004 060542.4, WO2007009911, WO2007028145, WO2007067612-615, WO2007081755, WO2007115058.

In one embodiment of the invention, the compound of the formula I is administered in combination with an agonist of GPR109A (HM74A receptor agonists; NAR agonists (nicotinic acid receptor agonists)), for example nicotinic acid or “extended release niacin” in conjunction with MK-0524A (laropiprant) or MK-0524, or those compounds as described in WO2006045565, WO2006045564, WO2006069242, WO2006085108, WO2006085112, WO2006085113, WO2006124490, WO2006113150, WO2007017261, WO2007017262, WO2007017265, WO2007015744, WO2007027532, WO2007092364, WO2007120575, WO2007134986.

In another embodiment of the invention, the compound of the formula I is administered in combination with a solid combination of niacin with simvastatin.

In another embodiment of the invention, the compound of the formula I is administered in combination with nicotinic acid or “extended release niacin” in conjunction with MK-0524A (laropiprant).

In a further embodiment of the invention, the compound of the formula I is administered in combination with nicotinic acid or “extended release niacin” in conjunction with MK-0524A (laropiprant) and with simvastatin.

In another embodiment of the invention, the compound of the formula I is administered in combination with an agonist of GPR116, as described, for example, in WO2006067531, WO2006067532.

In one embodiment, the compound of the formula I is administered in combination with modulators of GPR40, as described, for example, in WO2007013689, WO2007033002, WO2007106469, US2007265332, WO2007123225, WO2007131619, WO2007131620, WO2007131621, US2007265332, WO2007131622, WO2007136572.

In one embodiment, the compound of the formula I is administered in combination with GPR119b modulators, as described, for example, in WO2004041274.

In one embodiment, the compound of the formula I is administered in combination with modulators of GPR119 (G protein-coupled glucose-dependent insulinotropic receptor), for example PSN-119-1, or those as described, for example, in WO2005061489 (PSN-632408), WO2004065380, WO2006018662, WO2007003960-62 and WO2007003964, WO2007116229, WO2007116230.

In a further embodiment, the compound of the formula I is administered in combination with modulators of GPR120, as described, for example, in EP1688138.

In one embodiment, the compound of the formula I is administered in combination with inhibitors of hormone-sensitive lipase (HSL) and/or phospholipases, as described, for example, in WO2005073199, WO2006074957, WO2006087309, WO2006111321, WO2007042178, WO2007119837.

In one embodiment, the compound of the formula I is administered in combination with inhibitors of endothelial lipase, as described, for example, in WO2007110216.

In one embodiment, the compound of the formula I is administered in combination with a phospholipase A2 inhibitor, for example darapladib or A-002.

In one embodiment, the compound of the formula I is administered in combination with myricitrin, a lipase inhibitor (WO2007119827).

In one embodiment, the compound of the formula I is administered in combination with an inhibitor of glycogen synthase kinase-3 beta (GSK-3 beta), as described, for example, in US2005222220, WO2005085230, WO2005111018, WO2003078403, WO2004022544, WO2003106410, WO2005058908, US2005038023, WO2005009997, US2005026984, WO2005000836, WO2004106343, EP1460075, WO2004014910, WO2003076442, WO2005087727, WO2004046117, WO2007073117, WO2007083978, WO2007120102, WO2007122634, WO2007125109, WO2007125110.

In one embodiment, the compound of the formula I is administered in combination with, an inhibitor of phosphoenolpyruvate carboxykinase (PEPCK), for example those as described in WO2004074288.

In one embodiment, the compound of the formula I is administered in combination with an inhibitor of serum/glucocorticoid-regulated kinase (SGK), as described, for example, in WO2006072354, WO2007093264.

In one embodiment, the compound of the formula I is administered in combination with an inhibitor of protein kinase C beta (PKC beta), for example ruboxistaurin.

In a further embodiment, the compound of the formula I is administered in combination with an activator of the AMP-activated protein kinase (AMPK), as described, for example, in WO2007062568.

In one embodiment, the compound of the formula I is administered in combination with an inhibitor of ceramide kinase, as described, for example, in WO2007112914.

In a further embodiment, the compound of the formula I is administered in combination with an inhibitor of MAPK-interacting kinase 2 (MNK2), as described, for example, in WO2007104053, WO2007115822.

In one embodiment, the compound of the formula I is administered in combination with inhibitors of “I-kappaB kinase” (IKK inhibitors), as described, for example, in WO2001000610, WO2001030774, WO2004022057, WO2004022553, WO2005097129, WO2005113544, US2007244140.

In one embodiment of the invention, the compound of the formula I is administered in combination with an HMG-CoA reductase inhibitor such as simvastatin, fluvastatin, pravastatin, lovastatin, atorvastatin, cerivastatin, rosuvastatin, L-659699, or those as described in US2007249583.

In a further embodiment of the invention, the compound of the formula I is administered in combination with a farnesoid X receptor (FXR) antagonist, as described, for example, in WO2007052843, WO2007070796, WO2007092751, JP2007230909, WO2007095174, WO2007140174, WO2007140183.

In another embodiment of the invention, the compound of the formula I is administered in combination with a ligand of the liver X receptor (LXR), as described, for example, in WO2007092965.

In one embodiment of the invention, the compound of the formula I is administered in combination with a fibrate, for example fenofibrate, clofibrate, bezafibrate.

In one embodiment of the invention, the compound of the formula I is administered in combination with fibrates, for example the choline salt of fenofibrate (SLV-348).

In one embodiment of the invention, the compound of the formula I is administered in combination with fibrates, for example the choline salt of fenofibrate and an HMG-CoA reductase inhibitor, for example rosuvastatin.

In a further embodiment of the invention, the compound of the formula I is administered in combination with bezafibrate and diflunisal.

In a further embodiment of the invention, the compound of the formula I is administered in combination with a solid combination of fenofibrate or a salt thereof with simvastatin, rosuvastatin, fluvastatin, lovastatin, cerivastatin, pravastatin or atorvastatin.

In a further embodiment of the invention, the compound of the formula I is administered in combination with Synordia®, a solid combination of fenofibrate with metformin.

In one embodiment of the invention, the compound of the formula I is administered in combination with a cholesterol absorption inhibitor, for example ezetimibe, tiqueside, pamaqueside, FM-VP4 (sitostanol/campesterol ascorbyl phosphate; Forbes Medi-Tech, WO2005042692, WO2005005453), MD-0727 (Microbia Inc., WO2005021497, WO2005021495) or with compounds as described in WO2002066464, WO2005000353 (Kotobuki Pharmaceutical Co. Ltd.) or WO2005044256 or WO2005062824 (Merck & Co.) or WO2005061451 and WO2005061452 (AstraZeneca AB) and WO2006017257 (Phenomix) or WO2005033100 (Lipideon Biotechnology AG), or as described in WO2002050060, WO2002050068, WO2004000803, WO2004000804, WO2004000805, WO2004087655, WO2004097655, WO2005047248, WO2006086562, WO2006102674, WO2006116499, WO2006121861, WO2006122186, WO2006122216, WO2006127893, WO2006137794, WO2006137796, WO2006137782, WO2006137793, WO2006137797, WO2006137795, WO2006137792, WO2006138163, WO2007059871, US2007232688, WO2007126358.

In one embodiment of the invention, the compound of the formula I is administered in combination with Vytorin™, a solid combination of ezetimibe with simvastatin.

In one embodiment of the invention, the compound of the formula I is administered in combination with a solid combination of ezetimibe with atorvastatin.

In one embodiment of the invention, the compound of the formula I is administered in combination with a solid combination of ezetimibe with fenofibrate.

In one embodiment of the invention, the further active ingredient is a diphenylazetidinone derivative, as described, for example, in U.S. Pat. No. 6,992,067 or U.S. Pat. No. 7,205,290.

In a further embodiment of the invention, the further active ingredient is a diphenylazetidinone derivative, as described, for example, in U.S. Pat. No. 6,992,067 or U.S. Pat. No. 7,205,290, combined with a statin, for example simvastatin, fluvastatin, pravastatin, lovastatin, cerivastatin, atorvastatin or rosuvastatin.

In one embodiment of the invention, the compound of the formula I is administered in combination with a solid combination of lapaquistat, a squalene synthase inhibitor, with atorvastatin.

In one embodiment of the invention, the compound of the formula I is administered in combination with a CETP inhibitor, for example torcetrapib, anacetrapib or JTT-705, or those as described in WO2006002342, WO2006010422, WO2006012093, WO2006073973, WO2006072362, WO2007088996, WO2007088999, US2007185058, US2007185113, US2007185154, US2007185182, WO2006097169, WO2007041494, WO2007090752, WO2007107243, WO2007120621, US2007265252, US2007265304, WO2007128568, WO2007132906.

In one embodiment of the invention, the compound of the formula I is administered in combination with bile acid reabsorption inhibitor (see, for example, U.S. Pat. No. 6,245,744, U.S. Pat. No. 6,221,897 or WO00/61568), for example HMR 1741, or those as described in DE 10 2005 033099.1 and DE 10 2005 033100.9, WO2007009655-56.

In one embodiment, the compound of the formula I is administered in combination with agonists of GPBAR1 (G-protein-coupled bile acid receptor-1; TGR5), as described, for example, in WO2007110237, WO2007127505.

In one embodiment of the invention, the compound of the formula I is administered in combination with a polymeric bile acid adsorber, for example cholestyramine, colesevelam hydrochloride.

In one embodiment of the invention, the compound of the formula I is administered in combination with a chewing gum comprising phytosterols (Reductol™).

In one embodiment of the invention, the compound of the formula I is administered in combination with an inhibitor of the microsomal triglyceride transfer protein (MTP inhibitor), for example implitapide, BMS-201038, R-103757, AS-1552133, SLx-4090, AEGR-733, or those as described in WO2005085226, WO2005121091, WO2006010423, WO2006113910.

In another embodiment of the invention, the compound of the formula I is administered in combination with an antagonist of the somatostatin 5 receptor (SST5 receptor), for example those as described in WO2006094682.

In one embodiment of the invention, the compound of the formula I is administered in combination with an ACAT inhibitor, for example avasimibe, SMP-797 or KY-382.

In a further embodiment of the invention, the compound of the formula I is administered in combination with an inhibitor of liver carnitine palmitoyltransferase 1 (L-CPT1), as described, for example, in WO2007063012, WO2007096251 (ST-3473).

In one embodiment of the invention, the compound of the formula I is administered in combination with a squalene synthetase inhibitor, for example BMS-188494, TAK-475 (lapaquistat acetate), or as described in WO2005077907, JP2007022943.

In one embodiment of the invention, the compound of the formula I is administered in combination with ISIS-301012 (mipomersen), an antisense oligonucleotide which is capable of regulating the apolipoprotein B gene.

In one embodiment of the invention, the compound of the formula I is administered in combination with an LDL receptor inducer (see U.S. Pat. No. 6,342,512), for example HMR1171, HMR1586, or those as described in WO2005097738.

In one embodiment of the invention, the compound of the formula I is administered in combination with an ABCA1 expression enhancer, as described, for example, in WO2006072393.

In one embodiment of the invention, the compound of the formula I is administered in combination with a lipoprotein lipase modulator, for example ibrolipim (NO-1886).

In one embodiment of the invention, the compound of the formula I is administered in combination with a lipoprotein(a) antagonist, for example gemcabene (CI-1027).

In one embodiment of the invention, the compound of the formula I is administered in combination with a lipase inhibitor, for example orlistat or cetilistat (ATL-962).

In one embodiment of the invention, the compound of the formula I is administered in combination with an adenosine A2B receptor agonist (adenosine A2B R), for example ATL-801.

In another embodiment of the invention, the compound of the formula I is administered in combination with a modulator of adenosine A2A and/or adenosine A3 receptors, as described, for example, in WO2007111954, WO2007121918, WO2007121921, WO2007121923.

In one embodiment of the invention, the compound of the formula I is administered in combination with an adenosine A2B receptor antagonist (adenosine A2B R), as described in US2007270433.

In one embodiment, the compound of the formula I is administered in combination with inhibitors of acetyl-CoA carboxylase (ACC1 and/or ACC2), for example those as described in WO199946262, WO200372197, WO2003072197, WO2005044814, WO2005108370, JP2006131559, WO2007011809, WO2007011811, WO2007013691, WO2007095601-603, WO2007119833.

In another embodiment, the compound of the formula I is administered in combination with modulators of microsomal acyl-CoA:glycerol-3-phosphate acyltransferase 3 (GPAT3, described in WO2007100789) or with modulators of microsomal acyl-CoA:glycerol-3-phosphate acyltransferase 4 (GPAT4, described in WO2007100833).

In a further embodiment, the compound of the formula I is administered in combination with modulators of xanthine oxidoreductase (XOR).

In a further embodiment, the compound of the formula I is administered in combination with CART modulators (see “Cocaine-amphetamine-regulated transcript influences energy metabolism, anxiety and gastric emptying in mice” Asakawa, A. et al.: Hormone and Metabolic Research (2001), 33(9), 554-558);

NPY antagonists, for example 4-[(4-aminoquinazolin-2-ylamino)methyl]-cyclohexylmethylnaphthalene-1-sulfonamide hydrochloride (CGP 71683A);

NPY-5 receptor antagonists, such as L-152804 or the compound “NPY-5-BY” from Banyu, or as described, for example, in WO2006001318, WO2007103295, WO2007125952;

NPY-4 receptor antagonists, as described, for example, in WO2007038942;

NPY-2 receptor antagonists, as described, for example, in WO2007038943;

peptide YY 3-36 (PYY3-36) or analogous compounds, for example CJC-1682 (PYY3-36 conjugated with human serum albumin via Cys34) or CJC-1643 (derivative of PYY3-36, which is conjugated in vivo to serum albumin), or those as described in WO2005080424, WO2006095166;

derivatives of the peptide obestatin, as described by WO2006096847;

CB1R (cannabinoid receptor 1) antagonists (for example rimonabant, surinabant (SR147778), SLV-319, AVE-1625, taranabant (MK-0364) or salts thereof, V-24343 or those compounds as described in, for example, EP 0656354, WO 00/15609, WO2001/64632-64634, WO 02/076949, WO2005080345, WO2005080328, WO2005080343, WO2005075450, WO2005080357, WO200170700, WO2003026647-48, WO200302776, WO2003040107, WO2003007887, WO2003027069, U.S. Pat. No. 6,509,367, WO200132663, WO2003086288, WO2003087037, WO2004048317, WO2004058145, WO2003084930, WO2003084943, WO2004058744, WO2004013120, WO2004029204, WO2004035566, WO2004058249, WO2004058255, WO2004058727, WO2004069838, US20040214837, US20040214855, US20040214856, WO2004096209, WO2004096763, WO2004096794, WO2005000809, WO2004099157, US20040266845, WO2004110453, WO2004108728, WO2004000817, WO2005000820, US20050009870, WO200500974, WO2004111033-34, WO200411038-39, WO2005016286, WO2005007111, WO2005007628, US20050054679, WO2005027837, WO2005028456, WO2005063761-62, WO2005061509, WO2005077897, WO2006047516, WO2006060461, WO2006067428, WO2006067443, WO2006087480, WO2006087476, WO2006100208, WO2006106054, WO2006111849, WO2006113704, WO2007009705, WO2007017124, WO2007017126, WO2007018459, WO2007018460, WO2007016460, WO2007020502, WO2007026215, WO2007028849, WO2007031720, WO2007031721, WO2007036945, WO2007038045, WO2007039740, US20070015810, WO2007046548, WO2007047737, WO2007057687, WO2007062193, WO2007064272, WO2007079681, WO2007084319, WO2007084450, WO2007086080, EP1816125, US2007213302, WO2007095513, WO2007096764, US2007254863, WO2007119001, WO2007120454, WO2007121687, WO2007123949, US2007259934, WO2007131219, WO2007133820, WO2007136607, WO2007136571, US7297710, WO2007138050, WO2007140385, WO2007140439);

cannabinoid receptor 1/cannabinoid receptor 2 (CB1/CB2) modulating compounds, for example delta-9-tetrahydrocannabivarin, or those as described, for example, in WO2007001939, WO2007044215, WO2007047737, WO2007095513, WO2007096764, WO2007112399, WO2007112402;

modulators of FAAH (fatty acid amide hydrolase), as described, for example, in WO2007140005;

vanilloid 1 receptor modulators (modulators of TRPV1), as described, for example, in WO2007091948, WO2007129188, WO2007133637;

activators of the capsaicin receptor, as described, for example, in JP2007210969;

agonists of the prostaglandin receptor, for example bimatoprost or those compounds as described in WO2007111806;

MC4 receptor agonists (melanocortin-4 receptor agonists, MC4R agonists, for example N-[2-(3a-benzyl-2-methyl-3-oxo-2,3,3a,4,6,7-hexahydropyrazolo[4,3-c]-pyridin-5-yl)-1-(4-chlorophenyl)-2-oxoethyl]-1-amino-1,2,3,4-tetrahydronaphthalene-2-carboxamide; (WO 01/91752)) or LB53280, LB53279, LB53278 or THIQ, MB243, RY764, CHIR-785, PT-141, MK-0493, or those as described in WO2005060985, WO2005009950, WO2004087159, WO2004078717, WO2004078716, WO2004024720, US20050124652, WO2005051391, WO2004112793, WOUS20050222014, US20050176728, US20050164914, US20050124636, US20050130988, US20040167201, WO2004005324, WO2004037797, WO2005042516, WO2005040109, WO2005030797, US20040224901, WO200501921, WO200509184, WO2005000339, EP1460069, WO2005047253, WO2005047251, WO2005118573, EP1538159, WO2004072076, WO2004072077, WO2006021655-57, WO2007009894, WO2007015162, WO2007041061, WO2007041052, JP2007131570, EP-1842846, WO2007096186, WO2007096763;

orexin receptor 1 antagonists (OX1R antagonists), orexin receptor 2 antagonists (OX2R antagonists) or mixed OX1R/OX2R antagonists (e.g. 1-(2-methyl-benzoxazol-6-yl)-3-[1,5]naphthyridin-4-ylurea hydrochloride (SB-334867-A), or those as described, for example, in WO200196302, WO200185693, WO2004085403, WO2005075458, WO2006067224, WO2007085718, WO2007088276, WO2007116374; WO2007122591, WO2007126934, WO2007126935);

histamine H3 receptor antagonists/inverse agonists (e.g. 3-cyclohexyl-1-(4,4-dimethyl-1,4,6,7-tetrahydroimidazo[4,5-c]pyridin-5-yl)propan-1-one oxalic acid salt (WO 00/63208), or those as described in WO200064884, WO2005082893, US2005171181 (e.g. PF-00389027), WO2006107661, WO2007003804, WO2007016496, WO2007020213, WO2007049798, WO2007055418, WO2007057329, WO2007065820, WO2007068620, WO2007068641, WO2007075629, WO2007080140, WO2007082840, WO2007088450, WO2007088462, WO2007094962, WO2007099423, WO2007100990, WO2007105053, WO2007106349, WO2007110364, WO2007115938, WO2007131907, WO2007133561, US2007270440, WO2007135111);

histamine H1/histamine H3 modulators, for example betahistine or its dihydrochloride;

CRF antagonists (e.g. [2-methyl-9-(2,4,6-trimethylphenyl)-9H-1,3,9-triazafluoren-4-yl]dipropylamine (WO 00/66585) or those CRF1 antagonists as described in WO2007105113, WO2007133756);

CRF BP antagonists (e.g. urocortin);

urocortin agonists;

agonists of the beta-3 adrenoceptor, for example 1-(4-chloro-3-methanesulfonylmethylphenyl)-2-[2-(2,3-dimethyl-1H-indol-6-yloxy)ethylamino]-ethanol hydrochloride (WO 01/83451) or solabegron (GW-427353) or N-5984 (KRP-204), or those as described in JP2006111553, WO2002038543, WO2002038544, WO2007048840-843;

MSH (melanocyte-stimulating hormone) agonists;

MCH (melanine-concentrating hormone) receptor antagonists (for example NBI-845, A-761, A-665798, A-798, ATC-0175, T-226296, T-71, GW-803430, or those compounds as described in WO2005085200, WO2005019240, WO2004011438, WO2004012648, WO2003015769, WO2004072025, WO2005070898, WO2005070925, WO2004039780, WO2004092181, WO2003033476, WO2002006245, WO2002089729, WO2002002744, WO2003004027, FR2868780, WO2006010446, WO2006038680, WO2006044293, WO2006044174, JP2006176443, WO2006018280, WO2006018279, WO2006118320, WO2006130075, WO2007018248, WO2007012661, WO2007029847, WO2007024004, WO2007039462, WO2007042660, WO2007042668, WO2007042669, US2007093508, US2007093509, WO2007048802, JP2007091649, WO2007092416; WO2007093363-366, WO2007114902, WO2007114916);

CCK-A (CCK-1) agonists (for example {2-[4-(4-chloro-2,5-dimethoxyphenyl)-5-(2-cyclohexylethyl)thiazol-2-ylcarbamoyl]-5,7-dimethylindol-1-yl}acetic acid trifluoroacetic acid salt (WO 99/15525) or SR-146131 (WO 0244150) or SSR-125180), or those as described in WO2005116034, WO2007120655, WO2007120688, WO2007120718;

serotonin reuptake inhibitors (for example dexfenfluramine);

mixed serotonin/dopamine reuptake inhibitors (e.g. bupropion), or solid combinations of bupropion with naltrexone or bupropion with zonisamide;

mixed reuptake inhibitors, for example DOV-21947;

mixed serotoninergic and noradrenergic compounds (e.g. WO 00/71549);

5-HT receptor agonists, for example 1-(3-ethylbenzofuran-7-yl)piperazine oxalic acid salt (WO 01/09111);

mixed dopamine/norepinephrine/acetylcholine reuptake inhibitors (e.g. tesofensine), or those as described, for example, in WO2006085118;

5-HT2C receptor agonists (for example lorcaserine hydrochloride (APD-356) or BVT-933, or those as described in WO200077010, WO200077001-02, WO2005019180, WO2003064423, WO200242304, WO2005035533, WO2005082859, WO2006004937, US2006025601, WO2006028961, WO2006077025, WO2006103511, WO2007028132, WO2007084622, US2007249709; WO2007132841, WO2007140213);

5-HT6 receptor modulators, for example E-6837, BVT-74316 or PRX-07034, or those as described, for example, in WO2005058858, WO2007054257, WO2007107373, WO2007108569, WO2007108742-744;

agonists of estrogen receptor gamma (ERR agonists), as described, for example, in WO2007131005;

sigma-1 receptor antagonists, as described, for example, in WO2007098953, WO2007098961;

muscarin 3 receptor (M3R) antagonists, as described, for example, in WO2007110782;

bombesin receptor agonists (BRS-3 agonists);

galanin receptor antagonists;

growth hormone (e.g. human growth hormone or AOD-9604);

growth hormone releasing compounds (tert-butyl 6-benzyloxy-1-(2-diisopropylaminoethylcarbamoyl)-3,4-dihydro-1H-isoquinoline-2-carboxylate (WO 01/85695));

growth hormone secretagogue receptor antagonists (ghrelin antagonists), for example A-778193, or those as described in WO2005030734, WO2007127457;

growth hormone secretagogue receptor modulators, for example JMV-2959, JMV-3002, JMV-2810, JMV-2951, or those as described in WO2006012577 (e.g. YIL-781 or YIL-870), WO2007079239;

TRH agonists (see, for example, EP 0 462 884);

decoupling protein 2 or 3 modulators;

leptin agonists (see, for example, Lee, Daniel W.; Leinung, Matthew C.; Rozhayskaya-Arena, Marina; Grasso, Patricia. Leptin agonists as a potential approach to the treatment of obesity. Drugs of the Future (2001), 26(9), 873-881);

dopamine agonists (DA agonists, for example bromocriptine, Doprexin);

lipase/amylase inhibitors (e.g. WO 00/40569);

inhibitors of diacylglycerol O-acyltransferases (DGATs), for example BAY-74-4113, or as described, for example, in US2004/0224997, WO2004094618, WO200058491, WO2005044250, WO2005072740, JP2005206492, WO2005013907, WO2006004200, WO2006019020, WO2006064189, WO2006082952, WO2006120125, WO2006113919, WO2006134317, WO2007016538, WO2007060140, JP2007131584, WO2007071966, WO2007126957, WO2007137103, WO2007137107, WO2007138304, WO2007138311;

inhibitors of fatty acid synthase (FAS), for example C75, or those as described in WO2004005277;

inhibitors of stearoyl-CoA delta9 desaturase (SCD1), as described, for example in WO2007009236, WO2007044085, WO2007046867, WO2007046868, WO20070501124, WO2007056846, WO2007071023, WO2007130075, WO2007134457, WO2007136746;

inhibitors of “adipocyte fatty acid-binding protein aP2”, for example BMS-309403;

activators of adiponectin secretion, as described, for example, in WO2006082978;

promoters of adiponectin production, as described, for example, in WO2007125946;

oxyntomodulin;

oleoyl-estrone

or agonists or partial agonists of the thyroid hormone receptor (thyroid hormone receptor agonists), for example: KB-2115 or DITPA, or those as described in WO20058279, WO200172692, WO200194293, WO2003084915, WO2004018421, WO2005092316, WO2007003419, WO2007009913, WO2007039125, WO2007110225, WO2007110226, WO2007128492, WO2007132475, WO2007134864;

or agonists of the thyroid hormone receptor beta (TR-beta), for example MB-07811 or MB-07344.

In one embodiment of the invention, the compound of the formula I is administered in combination with an inhibitor of site-1 protease (SIP), for example PF-429242.

In a further embodiment of the invention, the compound of the formula I is administered in combination with an RNAi therapeutic agent directed against PCSK9 (proprotein convertase subtilisin/kexin type 9).

In one embodiment, the compound of the formula I is administered in combination with Omacor® or Lovaza™ (omega-3 fatty acid ester; highly concentrated ethyl ester of eicosapentaenoic acid and of docosahexaenoic acid).

In one embodiment, the compound of the formula I is administered in combination with lycopene.

In one embodiment of the invention, the compound of the formula I is administered in combination with an antioxidant, for example OPC-14117, succinobucol, probucol, tocopherol, ascorbic acid, β-carotene or selenium.

In one embodiment of the invention, the compound of the formula I is administered in combination with a vitamin, for example vitamin B6 or vitamin B 12.

In one embodiment, the compound of the formula I is administered in combination with more than one of the aforementioned compounds, for example in combination with a sulfonylurea and metformin, a sulfonylurea and acarbose, repaglinide and metformin, insulin and a sulfonylurea, insulin and metformin, insulin and troglitazone, insulin and lovastatin, etc.

In another embodiment, the compound of the formula I is administered in combination with an inhibitor of carboanhydrase type 2 (carbonic anhydrase type 2), for example those as described in WO2007065948.

In another embodiment, the compound of the formula I is administered in combination with topiramate.

In a further embodiment, the compound of the formula I is administered in combination with a solid combination of topiramate with phentermine (Qnexa™).

In a further embodiment, the compound of the formula I is administered in combination with an antisense compound, e.g. ISIS-377131, which inhibits the production of the glucocorticoid receptor.

In one embodiment, the compound of the formula I is administered in combination with an agonist of the RUP3 receptor, as described, for example, in WO2007035355.

In another embodiment, the compound of the formula I is administered in combination with an activator of the gene which codes for ataxia telangiectasia mutated (ATM) protein kinase, for example chloroquine.

In one embodiment, the compound of the formula I is administered in combination with a tau protein kinase 1 inhibitor (TPK1 inhibitor), as described, for example, in WO2007119463.

In one embodiment, the compound of the formula I is administered in combination with a “c-Jun N-terminal kinase” inhibitor (INK inhibitor), as described, for example, in WO2007125405.

In one embodiment, the compound of the formula I is administered in combination with an endothelin A receptor antagonist, for example avosentan (SPP-301).

In one embodiment, the compound of the formula I is administered in combination with modulators of the glucocorticoid receptor (GR), for example KB-3305 or those compounds as described, for example, in WO2005090336, WO2006071609, WO2006135826, WO2007105766.

In one embodiment, the further active ingredient is varenicline tartrate, a partial agonist of the alpha 4-beta 2 nicotinic acetylcholine receptor.

In one embodiment, the further active ingredient is trodusquemine

In one embodiment, the further active ingredient is a modulator of the enzyme SIRT1 (an NAD⁺-dependent protein deacetylase); this active ingredient may, for example, be resveratrol in suitable formulations, or those compounds as specified in WO2007019416 (e.g. SRT-1720).

In one embodiment of the invention, the further active ingredient is DM-71 (N-acetyl-L-cysteine with bethanechol).

In one embodiment, the compound of the formula I is administered in combination with antihypercholesterolemic compounds, as described, for example, in WO2007107587, WO2007111994.

In another embodiment, the compound of the formula I is administered in combination with a cyclic peptide agonist of the VPAC2 receptor, as described, for example, in WO2007101146, WO2007133828.

In a further embodiment, the compound of the formula I is administered in combination with an agonist of the endothelin receptor, as described, for example, in WO2007112069.

In a further embodiment, the compound of the formula I is administered in combination with AKP-020 (bis(ethylmaltolato)oxovanadium(IV)).

In another embodiment, the compound of the formula I is administered in combination with tissue-selective androgen receptor modulators (SARM), as described, for example, in WO2007099200.

In one embodiment of the invention, the further active ingredient is leptin;

see, for example, “Perspectives in the therapeutic use of leptin”, Salvador, Javier; Gomez-Ambrosi, Javier; Fruhbeck, Gema, Expert Opinion on Pharmacotherapy (2001), 2(10), 1615-1622.

In another embodiment of the invention, the further active ingredient is metreleptin (recombinant methionyl-leptin) combined with pramlintide.

In a further embodiment of the invention, the further active ingredient is the tetrapeptide ISF-402.

In one embodiment, the further active ingredient is dexamphetamine or amphetamine.

In one embodiment, the further active ingredient is fenfluramine or dexfenfluramine.

In another embodiment, the further active ingredient is sibutramine.

In one embodiment, the further active ingredient is mazindol or phentermin.

In a further embodiment, the further active ingredient is geniposidic acid (WO2007100104).

In one embodiment, the compound of the formula I is administered in combination with bulking agents, preferably insoluble bulking agents (see, for example, Carob/Caromax® (Zunft H J; et al., Carob pulp preparation for treatment of hypercholesterolemia, ADVANCES IN THERAPY (2001 September-October), 18(5), 230-6). Caromax is a carob-containing product from Nutrinova, Nutrition Specialties & Food Ingredients GmbH, Industriepark Höchst, 65926 Frankfurt/Main)). Combination with Caromax® is possible in one preparation or by separate administration of compounds of the formula I and Caromax®. Caromax® can also be administered in the form of food products such as, for example, in bakery products or muesli bars.

It will be appreciated that every suitable combination of the compounds of the invention with one or more of the aforementioned compounds and optionally one or more other pharmacologically active substances is considered to be covered by the scope of protection conferred by the present invention.

EXAMPLES

The examples and preparation methods adduced below serve to illustrate the invention, but without limiting it.

The inventive compounds of the formula I can be prepared with the aid of reactions known in principle. For example, the compounds were prepared according to the general reaction schemes which follow.

A methanesulfonyl chloride substituted by R2 and R3, through the reaction with

a suitable amine and triethylamine, is used to prepare a corresponding R2- and R3-substituted methanesulfonamide protected by R12 (e.g. Boc, benzyl, 2,4-dimethoxybenzyl). By treatment with a suitable base (e.g. methyllithium) at low temperature, it is then possible to produce a dianion, which reacts with a ketone or an aldehyde to give the R12-protected hydroxysulfonamide. By deprotection of R12 (for example, by acid treatment in the case of a Boc group or of a 2,4-dimethoxybenzyl group, or by hydrogenation in the case of a benzyl group), the free hydroxysulfonamide is formed. The treatment of the hydroxysulfonamide with base and an isothiocyanate, and subsequent oxidative ring closure with NBS, gives the desired 4,4-dioxooxathiazines.

In the cases in which the functional groups (for example a hydroxyl group) are introduced in protected form (for example benzyl-protected or as the ester), these are released at the end of the synthesis by a suitable method (for example hydrogenation or reduction).

The isothiocyanates used are obtained by the reaction of a primary amine with thiocarbonyldiimidazole, in which case any troublesome functional groups present, for example hydroxyl groups, are blocked with suitable protecting groups, for example silyl ethers. The protecting groups are removed at the end of the sequence by suitable methods, for example silyl groups by treatment with methanolic hydrochloric acid.

In the cases in which diastereomers or racemates form during the synthesis, these can be separated from one another by preparative HPLC.

Some of the primary amines used are commercially available.

4-Fluorobicyclo[2.2.2]octan-1-amine can be prepared as described in the literature (JOC 1982, 47, 1952-7).

Other inventive compounds can be obtained in other ways outlined by way of example in the scheme which follows.

In analogy to a literature method (JACS 1972, 94, 4386-7), chlorosulfonyl isocyanate is treated with an alcohol (e.g. methanol), forming a corresponding carboalkoxysulfamoyl chloride (e.g. carbomethoxysulfamoyl chloride). This can be deprotonated with sodium hydride, and the intermediate formed after chloride elimination (e.g. methyl-N-sulfonylurethane) reacts in a 2+4 cycloaddition with alkenes to form an alkoxy-substituted (e.g. methoxy-substituted) 4,4-dioxooxathiazine. The alkoxy group can be replaced here by means of an amine in a suitable solvent (e.g. dichloromethane), forming the desired 4,4-dioxooxathiazines.

In the cases in which diastereomers or racemates form during the synthesis, these can be separated from one another by preparative HPLC.

In the cases in which the functional groups (for example a hydroxyl group) are introduced in protected form (for example benzyl-protected or as the ester), these are released at the end of the synthesis by a suitable method (for example hydrogenation or reduction).

Some of the amines used are commercially available or can be prepared by methods known from the literature.

Others among the primary amines used were prepared as outlined in the scheme which follows.

The examples adduced hereinafter serve to illustrate the invention, but without restricting it.

TABLE Molecular Exam- Retention weight ple CHEMISTRY Method time (g/mol) Name  1

A 1.233 286.4 Cyclohexyl-(8,8-dimethyl-4,4-dioxo-7-oxa- 4lambda6-thia-5-aza-spiro[2.5]oct-5-en-6-yl)- amine  2

C 0.96  288.4 Cyclohexyl-(5,5,6,6-tetramethyl-4,4-dioxo- 5,6-dihydro-4H-4lambda6-[1,4,3]oxathiazin- 2-yl)-amine  3

A 1.071 300.4 Cyclohexyl-(11,11-dioxo-6,8-dioxa-11lambda6- thia-10-aza-dispiro[2.0.3.4]undec-9-en-9-yl)- amine  4

A 1.202 316.4 Cyclohexyl-(8-methoxymethyl-8-methyl-4,4- dioxo-7-oxa-4lambda6-thia-5-aza- spiro[2.5]oct-5-en-6-yl)-amine  5

A 1.02  338.4 (S)-3-(8,8-Dimethyl-4,4-dioxo-7-oxa- 4lambda6-thia-5-aza-spiro[2.5]oct-5-en-6- ylamino)-3-phenyl-propan-1-ol  6

A 1.816 392.5 (8-Benzyloxymethyl-8-methyl-4,4-dioxo-7-oxa- 4lambda6-thia-5-aza-spiro[2.5]oct-5-en-6-yl)- cyclohexyl-amine  7

A 1.278 302.4 (6-Cyclohexylamino-8-methyl-4,4-dioxo-7-oxa- 4lambda6-thia-5-aza-spiro[2.5]oct-5-en-8-yl)- methanol  8

A 1.225 330.4 (8,8-Dimethyl-4,4-dioxo-7-oxa-4lambda6-thia- 5-aza-spiro[2.5]oct-5-en-6-yl)-(4-fluoro- bicyclo[2.2.2]oct-1-yl)-amine  9

C 0.95  332.4 (4-Fluoro-bicyclo[2.2.2]oct-1-yl)-(5,5,6,6- tetramethyl-4,4-dioxo-5,6-dihydro-4H- 4lambda6-[1,4,3]oxathiazin-2-yl)-amine 10

C 0.847 340.4 (S)-3-Phenyl-3-(5,5,6,6-tetramethyl-4,4-dioxo- 5,6-dihydro-4H-4lambda6-[1,4,3]oxathiazin-2- ylamino)-propan-1-ol 11

C 0.902 374.9 (S)-3-(2-Chloro-phenyl)-3-(5,5,6,6-tetramethyl- 4,4-dioxo-5,6-dihydro-4H-4lambda6- [1,4,3]oxathiazin-2-ylamino)-propan-1-ol 12

C 0.875 358.4 (S)-3-(4-Fluoro-phenyl)-3-(5,5,6,6-tetramethyl- 4,4-dioxo-5,6-dihydro-4H-4lambda6- [1,4,3]oxathiazin-2-ylamino)-propan-1-ol 13

C 1.05  340.4 Cyclohexyl-(8-methyl-4,4-dioxo-8- trifluoromethyl-7-oxa-4lambda6-thia-5-aza- spiro[2.5]oct-5-en-6-yl)-amine 14

B 0.696 407.5 (R)-2-(4-Fluoro-phenyl)-2-(5,5,6,6-tetramethyl- 4,4-dioxo-5,6-dihydro-4H-4lambda6- [1,4,3]oxathiazin-2-ylamino)- ethanesulfonamide 15

C 1.025 314.4 Bicyclo[2.2.2]oct-1-yl-(5,5,6,6-tetramethyl-4,4- dioxo-5,6-dihydro-4H-4lambda6- [1,4,3]oxathiazin-2-yl)-amine 16

C 0.355 369.5 (S)-2-Methyl-4-pyridin-3-yl-4-(5,5,6,6- tetramethyl-4,4-dioxo-5,6-dihydro-4H- 4lambda6-[1,4,3]oxathiazin-2-ylamino)-butan- 2-ol 18

C 0.709 304.4 (1S,3S)-3-(5,5,6,6-Tetramethyl-4,4-dioxo-5,6- dihydro-4H-4lambda6-[1,4,3]oxathiazin-2- ylamino)-cyclohexanol 20

C 0.963 310.4 ((S)-1-Phenyl-ethyl)-(5,5,6,6-tetramethyl-4,4- dioxo-5,6-dihydro-4H-4lambda6- [1,4,3]oxathiazin-2-yl)-amine 21

C 0.978 328.4 [(S)-1-(2-Fluoro-phenyl)-ethyl]-(5,5,6,6- tetramethyl-4,4-dioxo-5,6-dihydro-4H- 4lambda6-[1,4,3]oxathiazin-2-yl)-amine 22

C 0.823 365.4 3-[(S)-3-Hydroxy-1-(5,5,6,6-tetramethyl-4,4- dioxo-5,6-dihydro-4H-4lambda6- [1,4,3]oxathiazin-2-ylamino)-propyl]- benzonitrile 23

C 0.991 402.9 (S)-4-(2-Chloro-phenyl)-2-methyl-4-(5,5,6,6- tetramethyl-4,4-dioxo-5,6-dihydro-4H- 4lambda6-[1,4,3]oxathiazin-2-ylamino)-butan- 2-ol 24

C 1.024 344.9 [(S)-1-(2-Chloro-phenyl)-ethyl]-(5,5,6,6- tetramethyl-4,4-dioxo-5,6-dihydro-4H- 4lambda6-[1,4,3]oxathiazin-2-yl)-amine 25

C 0.714 304.4 (1R,3R)-3-(5,5,6,6-Tetramethyl-4,4-dioxo-5,6- dihydro-4H-4lambda6-[1,4,3]oxathiazin-2- ylamino)-cyclohexanol 26

A 1.276 298.4 Cyclohexyl-(11,11-dioxo-8-oxa-11lambda6- thia-10-aza-dispiro[2.0.3.4]undec-9-en-9-yl)- amine

Chromatography Methods: Method A

Column: YMC J'spere ODS H80, 80 Å, S-4 μm, 20×2.1 mm

Eluent: 0 min 96% H₂O (0.05% TFA)—2.0 min 95% acetonitrile—2.4 min 95% acetonitrile—2.45 min 4% acetonitrile (30° C., flow rate 1 ml/min)

Method B

Column: Mercury MS, Luna C18(2), S-3 μm, 10×2.0 mm

Eluent: 0 min 93% H₂O (0.05% TFA)—1.2 min 95% acetonitrile—1.4 min 95% acetonitrile—1.45 min 7% acetonitrile (30° C., flow rate 1.1 ml/min)

Method C

Column: Mercury MS, Luna C18(2), S-3 μm, 10×2.0 mm

Eluent: 0 min 93% H₂O (0.05% TFA)—1.0 min 95% acetonitrile—1.45 min 95% acetonitrile—1.5 min 7% acetonitrile (30° C., flow rate 1.1 ml/min)

The efficacy of the compounds was tested as follows:

Enzymatic 11beta-HSD1 Test:

To measure the activity of the compounds, an SPA-based detection method (Solly et al. 2005) was employed. First of all, 20 μl of the human 11β-HSD1 microsome fraction (0.2 μg of protein), prepared in 50 mM HEPES, 0.1% BSA (w/v), were applied to a plate with 384 wells. The test compounds (0.09 μl) were applied to the assay plate in 100% DMSO. The reaction was started by addition of 20 μl of [1,2-³H]-cortisone (0.1 μCi/100 mM) in assay buffer comprising 25 mM HEPES, 100 mM KCl, 5 mM NaCl, 2 mM MgCl₂ and 0.25 mM NADPH. The plate was agitated at 37° C. for 1 hour. At the same time, a stop solution comprising 20 mg/ml SPA-PVT beads, 1.6 mg/ml monoclonal cortisol antibody and 0.01 mM SSR110887 (inhibitor from the Biovitrium patent) in 50 mM HEPES, 1 M NaCl and 1 M KCl was stirred at room temperature. To stop the reaction, 25 μl of the stop solution were added to each well. The plate was agitated gently at room temperature for 1 further hour and then centrifuged at 500 g_(av) for 1 min, in order that the SPA beads could settle out. The plate was then read in a Wallac-1450-Microbeta unit with a standard SPA program (counting time 1 min/well). The comparative compound was glycyrrhetinic acid.

Protein and radioactive substrate were dispensed with a Biomek FX unit (Beckman Coulter) for handling liquids. The test compounds were added with a Cybi-Well equipped with a 90 n1 pin tool (CyBio).

Lit.: Solly S, Mundt S S, Zokian H J, Juy-Fang Ding G, Hermanowski-Vosatka A, Strulovici B and Zheng W. High-throughput screening of 11β-Hydroxysteroid dehydrogenase type 1 in scintillation proximity format. Assay Drug Dev Technol 2005; 3:377-384.

TABLE 2 Biological activity in nanomolar (nM) Example IC₅₀ (nM) 1 28 2 18 3 139 4 462 5 37 6 73 7 786 8 22 9 4 10 7 11 4 12 7 13 19 14 10 15 4 16 586 18 560 20 15 21 5 22 6 23 11 24 4 25 289 26 82

It can be inferred from the test data that the compounds of the formula I inhibit 11beta-HSD1 (11beta-hydroxysteroid dehydrogenase type 1), and are thus of good suitability for treatment of hyperglycemia, insulin resistance, diabetes, obesity, lipid metabolism disorders, high blood pressure, cognitive improvement, elevated intraocular pressure, promotion of wound healing, and other diseases.

The preparation of some examples is described in detail hereinafter; the remaining compounds of the formula I were obtained analogously:

Experimental Cyclohexyl-(4,4-dioxo-8-phenyl-7-oxa-4lambda*6*-thia-5-azaspiro[2.5]oct-5-en-6-yl)amine

Cyclopropanesulfonamide

A mixture of 50 ml of 25% aqueous ammonia solution and 50 ml of THF was initially charged, and then 10.00 g of cyclopropanesulfonyl chloride in 10 ml of THF were slowly added dropwise and the mixture was stirred for 16 hours. After concentration by rotary evaporation and coevaporation with toluene, the residue was extracted by stirring with 100 ml of ethyl acetate and the solids were filtered off. The organic phase was dried over Na₂SO₄ and concentrated by rotary evaporation. This gave the product (7.03 g) with a molecular weight of 121.2 g/mol (C₃H₇NO₂S); MS (ESI): m/e=122 (M+H⁺).

N-tert-Butyloxycarbonylcyclopropanesulfonamide

1.46 g of cyclopropanesulfonamide were initially charged in a mixture of 30 ml of dichloromethane and 1.67 ml of triethylamine, and then 2.63 g of di-tert-butyl dicarbonate and 0.15 g of 4-dimethylaminopyridine were added and the mixture was stirred for 16 hours. The reaction solution was washed with 1 N aqueous hydrochloric acid, saturated aqueous sodium chloride solution and water, and the organic phase was dried over Na₂SO₄ and concentrated by rotary evaporation. This gave the product (2.66 g) with a molecular weight of 221.3 g/mol (C₈H₁₅NO₄S); MS (EST): m/e=166 (M-tert-Butyl+H⁺).

N-tert-Butyloxycarbonyl-1-(hydroxyphenylmethyl)cyclopropansulfonamide

Under inert gas, 1.00 g of N-tert-butyloxycarbonylcyclopropanesulfonamide were initially charged in 40 ml of THF, and then, at a temperature of −78° C., 6.63 ml of a 1.5 N butyllithium solution in hexane were added dropwise and the mixture was left to stir while cooling with ice for 1 hour. After stirring at room temperature for a further 30 minutes, the mixture was cooled again to −78° C., and a solution of 0.92 ml of benzaldehyde in 4 ml of THF was added. The mixture was allowed to come to room temperature while stirring overnight. The reaction solution was diluted with 20 ml of a saturated aqueous ammonium chloride solution and extracted with 40 ml of ethyl acetate, and the organic phase was dried over Na₂SO₄ and concentrated by rotary evaporation. The crude product was purified by means of normal phase chromatography using a Flashmaster with an n-heptane/ethyl acetate gradient. The product-containing fractions were combined and concentrated by rotary evaporation. This gave the product (880 mg) with a molecular weight of 327.4 g/mol (C₁₅H₂₁NO₅S); MS (ESI): m/e=254 (M-tert-butanol+H⁺).

1-(Hydroxyphenylmethyl)cyclopropanesulfonamide

880 mg of N-tert-butyloxycarbonyl-1-(hydroxyphenylmethyl)cyclopropanesulfonamide were dissolved in 25 ml of ethyl acetate, and 13.4 ml of a 1 N aqueous hydrochloric acid were added. The reaction solution was heated to 65° C. and the completeness of the conversion was checked with LCMS. After 8 hours, the mixture was neutralized with saturated aqueous sodium carbonate solution, and the organic phase was dried over Na₂SO₄ and concentrated by rotary evaporation. This gave the product (610 mg) with a molecular weight of 227.3 g/mol (C₁₀H₁₃NO₃S); MS (ESI): m/e=210 (M−H₂O+H⁺).

Cyclohexyl-(4,4-dioxo-8-phenyl-7-oxa-4lambda*6*-thia-5-azaspiro[2.5]oct-5-en-6-yl)amine

610 mg of 1-(hydroxyphenylmethyl)cyclopropanesulfonamide were dissolved in 5 ml of NMP and then stirred with 331 mg of potassium tert-butoxide for 5 minutes. Then 569 mg of cyclohexyl isothiocyanate were added. After stirring for 15 minutes, 525 mg of N-bromosuccinimide were then added and the mixture was stirred for a further 90 minutes. The solution was purified by preparative HPLC. This gave the product (191 mg) with a molecular weight of 334.4 g/mol (C₁₇H₂₂N₂O₃S); MS (ESI): m/e=335 (M+H⁺).

Compounds 1, 3-6, 8, 9, 17, 18, 20 and 40 were synthesized by this preparation method:

-   Cyclohexyl-(8,8-dimethyl-4,4-dioxo-7-oxa-4-lambda6-thia-5-azaspiro[2.5]oct-5-en-6-yl)-amine -   Cyclohexyl-(8-ethyl-4,4-dioxo-7-oxa-4lambda6-thia-5-azaspiro[2.5]oct-5-en-6-yl)amine -   Cyclohexyl-(8-isopropyl-4,4-dioxo-7-oxa-4lambda6-thia-5-azaspiro[2.5]oct-5-en-6-yl)amine -   Cyclohexyl-(4,4-dioxo-8-propyl-7-oxa-4lambda6-thia-5-azaspiro[2.5]oct-5-en-6-yl)amine -   (8-tert-Butyl-4,4-dioxo-7-oxa-4lambda6-thia-5-azaspiro[2.5]oct-5-en-6-yl)cyclohexylamine -   Cyclohexyl-(8-methyl-4,4-dioxo-7-oxa-4lambda6-thia-5-azaspiro[2.5]oct-5-en-6-yl)amine -   Cyclohexyl-(5,6,6-trimethyl-4,4-dioxo-5,6-dihydro-4H-4lambda6-[1,4,3]oxathiazin-2-yl)amine -   Cyclohexyl-(11,11-dioxo-6,8-dioxa-11lambda6-thia-10-aza-dispiro[2.0.3.4]undec-9-en-9-yl)amine -   Cyclohexyl-(8-methoxymethyl-8-methyl-4,4-dioxo-7-oxa-4lambda6-thia-5-azaspiro[2.5]oct-5-en-6-yl)amine -   (8-Benzyloxymethyl-8-methyl-4,4-dioxo-7-oxa-4lambda6-thia-5-azaspiro[2.5]oct-5-en-6-yl)-cyclohexylamine -   Cyclohexyl-(11,11-dioxo-8-oxa-11lambda6-thia-10-aza-dispiro[2.0.3.4]undec-9-en-9-yl)amine -   (6-Cyclohexylamino-8-methyl-4,4-dioxo-7-oxa-4lambda6-thia-5-azaspiro[2.5]oct-5-en-8-yl)methanol

Under inert gas, 80 mg of (8-benzyloxymethyl-8-methyl-4,4-dioxo-7-oxa-4lambda6-thia-5-azaspiro[2.5]oct-5-en-6-yl)cyclohexylamine were initially charged in 6 ml of ethanol and, with addition of 5 mg of 5% Pd/C, stirred under a hydrogen atmosphere for 16 hours. The completeness of the conversion was checked by LCMS and the reaction was once again admixed with 5 mg of 5% Pd/C, and the mixture was stirred under a hydrogen atmosphere for a further 2 hours. After filtration to remove the solid residues, the filtrate was freed of the solvent under reduced pressure. The crude product was purified by means of normal phase chromatography using a Flashmaster with an n-heptane/ethyl acetate gradient. The product-containing fractions were combined and concentrated by rotary evaporation, then taken up again in 10 ml of a mixture of acetonitrile and water (9:1) and lyophilized. This gave the product (32 mg) with a molecular weight of 302.4 g/mol (C₁₃H₂₂N₂O₄S); MS (ESI): m/e=303 (M+H⁺).

Cyclohexyl-(8-methyl-4,4-dioxo-8-trifluormethyl-7-oxa-4lambda6-thia-5-azaspiro[2.5]oct-5-en-6-yl)amine

The preparation was effected analogously to the above-described synthesis of compound 2. The introduction of the additional methyl group is described hereinafter.

1-(2,2,2-Trifluoro-1-hydroxy-1-methylethyl)cyclopropanesulfonamide

Under inert gas, 250 mg of 1-(2,2,2-trifluoroacetyl)cyclopropanesulfonamide were initially charged in 6 ml of THF and then, at a temperature of −78° C., 1.15 ml of a 3.0 N methylmagnesium bromide solution in diethyl ether were added dropwise and the mixture was stirred at constant temperature for 4 hours. The reaction solution was admixed with 5 ml of a saturated aqueous ammonium chloride solution and allowed to come to room temperature while stirring. After adjustment to pH 5 with 2 N aqueous hydrochloric acid, the mixture was extracted with 10 ml of ethyl acetate, and the organic phase was dried over Na₂SO₄ and concentrated by rotary evaporation. This gave the product (208 mg) with a molecular weight of 233.2 g/mol (C₆H₁₀F₃NO₃S); MS (ESI): m/e=234 (M+H⁺).

(8,8-Dimethyl-4,4-dioxo-7-oxa-4lambda6-thia-5-azaspiro[2.5]oct-5-en-6-yl)-(4-fluorobicyclo[2.2.2]oct-1-yl)amine

The amine used was prepared as follows:

Amino-4-fluorobicyclo[2.2.2]octane

Journal of Organic Chemistry 1982, 47(15), 2951-2957.

157 mg of 4-fluorobicyclo[2.2.2]oct-1-ylamine hydrochloride were initially charged in 2 ml of dichloromethane, and then 174 mg of 1,1′-thiocarbonyldiimidazole and 0.172 ml of triethylamine were added. After stirring at room temperature for 30 minutes, the batch was admixed with a mixture of 10 ml of diethyl ether and 10 ml of n-pentane, and washed with water. The organic phase was dried over MgSO₄ and concentrated by rotary evaporation, and the residue was dissolved in 1.5 ml of NMP. This solution was added to a suspension of 146 mg of 1-(1-hydroxy-1-methylethyl)cyclopropanesulfonamide and 101 mg of potassium tert-butoxide in 1.5 ml of NMP. After stirring for 1 hour, 149 mg of N-bromosuccinimide were added and the resulting reaction solution was stirred again for 1 hour. The reaction mixture was admixed with 40 ml of water and extracted three times with 15 ml of ethyl acetate. The combined organic phases were washed with 1 N aqueous potassium hydrogensulfate solution and twice with saturated aqueous sodium chloride solution, dried over MgSO₄ and concentrated by rotary evaporation. The residue was purified in a purification laboratory by means of preparative HPLC, and the product-containing fractions were lyophilized. This gave the product (9.1 mg) with a molecular weight of 330.4 g/mol (C₁₅H₂₃FN₂O₃S); MS (ESI): m/e=331 (M+H⁺).

(S)-3-(8,8-Dimethyl-4,4-dioxo-7-oxa-4lambda6-thia-5-azaspiro[2.5]oct-5-en-6-ylamino)-3-phenylpropan-1-ol

232 mg of (S)-3-amino-3-phenylpropan-1-ol were initially charged in 5 ml of dichloromethane and then 0.58 ml of triethylamine and 231 mg of tert-butyldimethylchlorosilane were added. The reaction solution was stirred at room temperature and the progress of the conversion was monitored by LCMS. After 1 hour, a further 42 mg of tert-butyldimethylchlorosilane were added and the mixture was stirred for 64 hours. Subsequently, the reaction solution was added to 10 ml of water and extracted with a mixture of 10 ml of diethyl ether and 10 ml of n-pentane. After drying over Na₂SO₄ and concentrating by rotary evaporation, the residue was dissolved in 5 ml of dichloromethane, and 274 mg of 1,1′-thiocarbonyldiimidazole were added and the mixture was stirred for 30 minutes. The reaction solution was washed 2× with 5 ml of water, dried over Na₂SO₄ and concentrated by rotary evaporation, and the residue was dissolved in 2 ml of NMP.

250 mg of 1-(1-hydroxy-1-methylethyl)cyclopropanesulfonamide was dissolved in 2 ml of NMP, and admixed while cooling with ice with 0.70 ml of a 2 N solution of sodium bis(trimethylsilyl)amide in THF and, after stirring for 5 minutes, with the isothiocyanate solution prepared above. After stirring for 1.5 hours, 248 mg of N-bromosuccinimide were added and the resulting reaction solution was stirred again for 10 minutes. The reaction mixture was added to 20 ml of water and extracted three times with 20 ml of ethyl acetate. The combined organic phases were dried with saturated aqueous sodium chloride solution, dried over Na₂SO₄ and concentrated by rotary evaporation. The residue was dissolved in 5 ml of methanol, 0.20 ml of concentrated hydrochloric acid was added and the mixture was stirred for 1.5 hours. After the addition of 1.26 ml of 1 N aqueous sodium hydroxide solution, the mixture was concentrated by rotary evaporation and purified in a purification laboratory by means of preparative HPLC. After lyophilization of the product-containing fractions, the product (26 mg) was thus obtained with a molecular weight of 338.4 g/mol (C₁₆H₂₂N₂O₄S); MS (ESI): m/e=339 (M+H⁺).

Cyclohexyl-(8,8-dioxo-5-oxa-8lambda6-thia-7-azaspiro[3.5]non-6-en-6-yl)amine

N-Benzylmethanesulfonamide

18.27 g of benzylamine were dissolved in 100 ml of methylene chloride and, while cooling with ice, 6.00 ml of methanesulfonyl chloride were very slowly added dropwise. On completion of addition of the methanesulfonyl chloride, the reaction solution was diluted with 100 ml of water, and the aqueous phase was extracted again with 50 ml of methylene chloride. The combined organic phases were washed with 1 N aqueous hydrochloric acid, dried over MgSO₄ and concentrated by rotary evaporation. This gave the product (14.40 g) with a molecular weight of 185.3 g/mol (C₈H₁₁NO₂S).

(1-Hydroxycyclobutyl)methanesulfonamide

Under inert gas, 2.00 g of N-benzylmethanesulfonamide were initially charged in 20 ml of THF, then, at a temperature of −78° C., 13.50 ml of a 1.6 N solution of butyllithium in hexane were added dropwise and the mixture was stirred at constant temperature for 5 minutes. The reaction solution was admixed with 3.23 ml of cyclobutanone and allowed to come to room temperature while stirring. After the addition of 1.24 ml of acetic acid, the volatile constituents were removed under reduced pressure. The residue was taken up in a mixture of 50 ml of ethyl acetate and 50 ml of aqueous sodium hydrogencarbonate solution, and the aqueous phase was extracted again with 50 ml of ethyl acetate. The combined organic phases were dried over MgSO₄ and concentrated by rotary evaporation. The crude product thus obtained was recrystallized from ethyl acetate/n-heptane, then dissolved in 20 ml of methanol and, with addition of 0.36 g of 20% Pd(OH)₂/C, stirred under a hydrogen atmosphere at 60° C. for 3 hours. After filtration to remove the solid residues, the filtrate was freed of the solvent under reduced pressure. This gave the product (1.07 g) with a molecular weight of 165.2 g/mol (C₅H₁₁NO₃S).

Cyclohexyl-(8,8-dioxo-5-oxa-8lambda*6*-thia-7-azaspiro[3.5]non-6-en-6-yl)amine

Under inert gas, 200 mg of (1-hydroxycyclobutyl)methanesulfonamide were dissolved in 2.5 ml of NMP, and admixed at −10° C. with 0.61 ml of a 2 N solution of sodium bis(trimethylsilyl)amide in THF and, after stirring for 5 minutes, with a solution of 0.19 ml of cyclohexyl isothiocyanate in 0.5 ml of NMP. After stirring at constant temperature for 40 minutes, 215 mg of N-bromosuccinimide were added in 4 portions within 5 minutes, and the reaction solution was stirred for a further 15 minutes. The reaction mixture was diluted with 60 ml of water and extracted twice with 20 ml of ethyl acetate. The combined organic phases were washed with saturated aqueous sodium chloride solution, dried over MgSO₄ and concentrated by rotary evaporation. The residue was purified in a purification laboratory by means of preparative HPLC. After lyophilization of the product-containing fractions, the product (114.7 mg) was thus obtained with a molecular weight of 272.4 g/mol (C₁₂H₂₀N₂O₃S); MS (ESI): m/e=273 (M+H⁺).

Compounds 11 and 12 were synthesized by this preparation method:

-   Cyclohexyl-(9,9-dioxo-6-oxa-9lambda6-thia-8-azaspiro[4.5]dec-7-en-7-yl)amine -   Cyclohexyl-(4,4-dioxo-1-oxa-4lambda6-thia-3-azaspiro[5.5]undec-2-en-2-yl)amine -   (S)-3-(8,8-Dioxo-5-oxa-8lambda6-thia-7-azaspiro[3.5]non-6-en-6-ylamino)-3-phenylpropan-1-ol

The preparation was effected analogously to the above-described synthesis of compound 10. The introduction of the amino alcohol is described hereinafter.

(S)-3-(tert-Butyldimethylsilanyloxy)-1-phenylpropylamine

1.50 g of (S)-3-amino-3-phenylpropan-1-ol hydrochloride were initially charged in 20 ml of dichloromethane and then 2.77 ml of triethylamine and 1.30 g of tert-butyldimethylchlorosilane were added. After stirring at room temperature for 3 hours, the reaction solution was extracted three times with 30 ml of water, dried by means of a phase separator cartridge (Isolute®), concentrated by rotary evaporation and dried under high vacuum. This gave the product (2.06 g) with a molecular weight of 265.5 g/mol (C₁₅H₂₇NOSi); MS (ESI): m/e=266 (M+H+).

(S)-3-(8,8-Dioxo-5-oxa-8lambda6-thia-7-azaspiro[3.5]non-6-en-6-ylamimo)-3-phenylpropan-1-ol

345 mg of (S)-3-(tert-butyldimethylsilanyloxy)-1-phenylpropylamine were dissolved in 3 ml of dichloromethane, 256 mg of 1,1′-thiocarbonyldiimidazole were added and the mixture was stirred for 20 minutes. The reaction solution was admixed with a mixture of 20 ml of diethyl ether and 20 ml of n-pentane, and washed three times with 30 ml of water, dried over MgSO₄ and concentrated by rotary evaporation, and the residue was dissolved in 1 ml of NMP. Under inert gas, 192 mg of (1-hydroxycyclobutyl)methanesulfonamide were dissolved in 1.5 ml of NMP, and admixed at −10° C. with 0.58 ml of a 2 N solution of sodium bis(trimethylsilyl)amide in THF and, after stirring for 5 minutes, with the isothiocyanate solution prepared above. After stirring for 30 minutes, 207 mg of N-bromosuccinimide were added in 4 portions and the resulting reaction solution was stirred at constant temperature for 30 minutes. The reaction mixture was diluted with 50 ml of water and extracted twice with 20 ml of ethyl acetate. The combined organic phases were washed with 20 ml of saturated aqueous ammonium chloride solution, dried over MgSO₄ and concentrated by rotary evaporation. The residue was dissolved in 3 ml of methanol, 0.30 ml of concentrated hydrochloric acid was added and the mixture was stirred for 1.5 hours. The reaction solution was admixed with 15 ml of water and ethyl acetate, the organic phase was dried over MgSO₄ and concentrated by rotary evaporation, and the residue was purified in a purification laboratory by means of preparative HPLC. The product-containing fractions were combined and freed of the solvent under reduced pressure, and the aqueous residue was lyophilized. To cleave the ethyl trifluoroacetate which had formed as part of the products, the lyophilizate was dissolved again in methanol, 0.5 ml of a 4 N solution of hydrochloric acid in dioxane was added and the mixture was stirred at room temperature for 6 hours. The solution was admixed with 10 ml of acetonitrile and concentrated by rotary evaporation, and the residue was dissolved in a little acetonitrile, water was added and the mixture was lyophilized. This gave the product (187.4 mg) with a molecular weight of 324.4 g/mol (C₁₅H₂₀N₂O₄S); MS (ESI): m/e=325 (M+H⁺).

Compounds 13, 15 and 16 were synthesized by this preparation method:

-   (S)-3-(6,6-Dimethyl-4,4-dioxo-5,6-dihydro-4H-4lambda6-[1,4,3]oxathiazin-2-ylamino)-3-phenylpropan-1-ol -   (S)-3-(9,9-Dioxo-6-oxa-9lambda6-thia-8-azaspiro[4.5]dec-7-en-7-ylamino)-3-phenylpropan-1-ol -   (S)-3-(4,4-Dioxo-1-oxa-4lambda6-thia-3-azaspiro[5.5]undec-2-en-2-ylamino)-3-phenylpropan-1-ol -   Cyclohexyl-(5,5,6,6-tetramethyl-4,4-dioxo-5,6-dihydro-4H-4lambda6-[1,4,3]oxathiazin-2-yl)amine

5,5,6,6-Tetramethyl-2-(4-nitrophenoxy)-5,6-dihydro-1,4,3-oxathiazine 4,4-dioxide

7.40 g of chlorosulfonyl isocyanate and 7.27 g of 4-nitrophenol were dissolved in 75 ml of dichloromethane and stirred at room temperature for 90 minutes. The reaction solution was freed of the solvent under reduced pressure, and the residue was dissolved in 50 ml of THF and, under inert gas and at −78° C., admixed with 2.18 g of sodium hydride. After stirring for 5 minutes, 4.38 g of 2,3-dimethyl-2-butene were added and the reaction mixture was heated, gradually because of commencement of evolution of gas, to 35° C. After stirring for 30 minutes, the suspension was added to ice and the resulting THF/water mixture was extracted twice with 100 ml of ethyl acetate. The combined organic phases were dried over Na₂SO₄ and concentrated by rotary evaporation. The residue was purified in a purification laboratory by means of preparative HPLC. After lyophilization of the product-containing fractions, the product (2.76 g) was thus obtained with a molecular weight of 328.4 g/mol (C₁₃H₁₆N₂O₆S).

Cyclohexyl-(5,5,6,6-tetramethyl-4,4-dioxo-5,6-dihydro-4H-4lambda6-[1,4,3]oxathiazin-2-yl)amine

200 mg of 5,5,6,6-tetramethyl-2-(4-nitrophenoxy)-5,6-dihydro-1,4,3-oxathiazine 4,4-dioxide and 60 mg of cyclohexylamine were dissolved in 2 ml of dichloromethane, and the mixture was stirred at room temperature for 15 minutes. Subsequently, the reaction solution was diluted with 50 ml of dichloromethane, washed twice with 50 ml of 0.1 N aqueous sodium hydroxide solution, twice with 50 ml of 1 N aqueous hydrochloric acid and with 50 ml of saturated aqueous sodium hydrogencarbonate solution, dried over Na₂SO₄ and concentrated by rotary evaporation. This gave the product (41 mg) with a molecular weight of 288.4 g/mol (C₁₃H₂₄N₂O₃S); MS (ESI): m/e=289 (M+H⁺).

Bicyclo[2.2.2]oct-1-yl-(5,5,6,6-tetramethyl-4,4-dioxo-5,6-dihydro-4H-4lambda6-[1,4,3]oxathiazin-2-yl)amine

The amine used was prepared as follows:

1-Aminobicyclo[2.2.2]octane

Helvetica Chimica Acta 1964, 47(2), 564-567.

300 mg of 5,5,6,6-tetramethyl-2-(4-nitrophenoxy)-5,6-dihydro-1,4,3-oxathiazine 4,4-dioxide and 163 mg of 1-aminobicyclo[2.2.2]octane hydrochloride were dissolved in a mixture of 5 ml of dichloromethane and 0.38 ml of N,N-diisopropylethylamine, and the mixture was stirred at room temperature for 72 hours. Subsequently, the reaction solution was concentrated by rotary evaporation and the residue was purified in a purification laboratory by means of preparative HPLC. After lyophilization of the product-containing fractions, the product (166 mg) was thus obtained with a molecular weight of 314.5 g/mol (C₁₅H₂₆N₂O₃S); MS (ESI): m/e=315 (M+H⁺).

[(S)-1-(2-Fluorophenyl)ethyl]-(5,5,6,6-tetramethyl-4,4-dioxo-5,6-dihydro-4H-4lambda6-[1,4,3]oxathiazin-2-yl)amine

200 mg of 5,5,6,6-tetramethyl-2-(4-nitrophenoxy)-5,6-dihydro-1,4,3-oxathiazine 4,4-dioxide and 111 mg of (S)-1-(2-fluorophenyl)ethylamine were dissolved in 1 ml of dichloromethane and 0.10 ml of N,N-diisopropylethylamine, and the mixture was stirred at room temperature for 16 hours. Subsequently, the reaction solution was diluted with 50 ml of dichloromethane, washed three times with 30 ml of 10% aqueous ammonia solution, three times with 30 ml of 1 N aqueous hydrochloric acid and with 30 ml of saturated aqueous sodium hydrogencarbonate solution, dried over Na₂SO₄ and concentrated by rotary evaporation. This gave the product (194 mg) with a molecular weight of 328.4 g/mol (C₁₅H₂₁FN₂O₃S); MS (ESI): m/e=329 (M+H⁺).

3-[(S)-3-Hydroxy-1-(5,5,6,6-tetramethyl-4,4-dioxo-5,6-dihydro-4H-4lambda6-[1,4,3]oxathiazin-2-ylamino)propyl]benzonitrile

N-[3-(tert-Butyldimethylsilanyloxy)prop-(E)-ylidene]-(S_(S))-2-methylpropane-2-sulfinamide

Under inert gas, 2.83 g of (S)-(−)-2-methylpropane-2-sulfinamide were initially charged 60 ml of dichloromethane and, with addition of 4.00 g of 3-(tert-butyldimethylsilanyloxy)propionaldehyde and 8.48 g of anhydrous copper sulfate, stirred at room temperature for 16 hours. The completeness of the conversion was checked by LCMS and the reaction was stirred for a further 24 hours. After filtration to remove the solid residues, the filtrate was freed of the solvent under reduced pressure. The crude product was purified by means of normal phase chromatography using a Flashmaster with an n-heptane/ethyl acetate gradient. The product-containing fractions were combined and concentrated by rotary evaporation. This gave the product (5.03 g) with a molecular weight of 291.5 g/mol (C₁₃H₂₉NO₂SSi); MS (ESI): m/e=292 (M+H⁺).

N—[(S)-3-(tert-Butyldimethylsilanyloxy)-1-(3-cyanophenyl)propyl]-(S_(S))-2-methylpropane-2-sulfinamide

A flask which had been baked out under inert gas was initially charged with 9.73 ml of a 14% solution of the isopropylmagnesium chloride/lithium chloride complex in THF (d=0.951 g/ml) and cooled to −15° C. After the addition of a solution of 1.56 g of 3-bromobenzonitrile in 5 ml of THF, the mixture was allowed to warm up to a temperature of −5° C. within 30 minutes. In a further flask which had been baked out under inert gas, 1.00 g of N-[3-(tert-butyldimethylsilanyloxy)prop-(E)-ylidene]-(S_(S))-2-methylpropane-2-sulfinamide was dissolved in 50 ml of toluene and, at a temperature of −78° C., the solution from the first flask was added dropwise. The reaction solution was stirred for 16 hours and, during this time, allowed to come to room temperature. Subsequently, the reaction solution was admixed with 5 ml of saturated aqueous ammonium chloride solution and freed of the solvent under reduced pressure. The residue was taken up in 50 ml of water and 50 ml of ethyl acetate, and the organic phase was dried over Na₂SO₄ and concentrated by rotary evaporation. The crude product was purified by means of normal phase chromatography using a Flashmaster with an n-heptane/ethyl acetate gradient. The product-containing fractions were combined and concentrated by rotary evaporation. This gave the product (0.25 g) with a molecular weight of 394.7 g/mol (C₂₀H₃₄N₂O₂SSi); MS (ESI): m/e=395 (M+H⁺).

3-((S)-1-Amino-3-hydroxypropyl)benzonitrile hydrochloride

430 mg of N—[(S)-3-(tert-butyldimethylsilanyloxy)-1-(3-cyanophenyl)propyl]-(S_(S))-2-methylpropane-2-sulfinamide were dissolved in 5 ml of methanol and, after addition of 1.36 ml of a 4 N hydrochloric acid in dioxane, stirred at room temperature for 1 hour. The solvent was removed under reduced pressure and the crude product was used in the next reaction without further purification. The hydrochloride of the product was obtained with a molecular weight of 176.2 g/mol (C₁₀H₁₂N₂O); MS (ESI): m/e=177 (M+H⁺).

3-[(S)-3-Hydroxy-1-(5,5,6,6-tetramethyl-4,4-dioxo-5,6-dihydro-4H-4lambda6-[1,4,3]oxathiazin-2-ylamino)propyl]benzonitrile

100 mg of 5,5,6,6-tetramethyl-2-(4-nitrophenoxy)-5,6-dihydro-1,4,3-oxathiazine 4,4-dioxide and 97 mg of 3-((S)-1-amino-3-hydroxypropyl)benzonitrile hydrochloride were dissolved in 5 ml of dichloromethane and 0.25 ml of N,N-diisopropylethylamine, and the mixture was stirred at room temperature for 16 hours. Subsequently, the reaction solution was diluted with 20 ml of dichloromethane, and washed with 10 ml of 10% aqueous ammonia solution and with 10 ml of 1 N aqueous hydrochloric acid. The two aqueous phases were extracted once again with 20 ml of ethyl acetate, and the combined organic phases were dried over Na₂SO₄ and concentrated by rotary evaporation. The residue was purified in a purification laboratory by means of preparative HPLC. After lyophilization of the product-containing fractions, the product (66 mg) was thus obtained with a molecular weight of 365.5 g/mol (C₁₇H₂₃N₃O₄S); MS (ESI): m/e=366 (M+H+).

The synthesis was performed in analogy to the chiral syntheses described in the literature. The enantiomeric ratio of the product is 95:5. It is assumed that the S enantiomer has formed in excess.

Tetrahedron 1999, 8883

Journal of Organic Chemistry 2001, 8772

Tetrahedron Letters 2001, 2051

(S)-4-(2-Chlorophenyl)-2-methyl-4-(5,5,6,6-tetramethyl-4,4-dioxo-5,6-dihydro-4H-4lambda6-[1,4,3]oxathiazin-2-ylamino)butan-2-ol

(S)-3-(2-Chlorophenyl)-3-(5,5,6,6-tetramethyl-4,4-dioxo-5,6-dihydro-4H-4lambda*6*-1,4,3-oxathiazin-2-ylamino)propionic acid methyl ester

200 mg of 5,5,6,6-tetramethyl-2-(4-nitrophenoxy)-5,6-dihydro-1,4,3-oxathiazine 4,4-dioxide and 130 mg of methyl (S)-3-amino-3-(2-chlorophenyl)propionate were dissolved in 5 ml of dichloromethane and 0.52 ml of N,N-diisopropylethylamine, and the mixture was stirred at room temperature for 16 hours. Subsequently, the reaction solution was diluted with 20 ml of dichloromethane and washed repeatedly with 20 ml of 25% aqueous ammonia solution, until the organic phase was colorless. The organic phase was dried over Na₂SO₄ and concentrated by rotary evaporation. This gave the product (191 mg) with a molecular weight of 402.9 g/mol (C₁₇H₂₃ClN₂O₅S); MS (ESI): m/e=403 (M+H⁺).

(S)-4-(2-Chlorophenyl)-2-methyl-4-(5,5,6,6-tetramethyl-4,4-dioxo-5,6-dihydro-4H-4lambda6-[1,4,3]oxathiazin-2-ylamino)butan-2-ol

Under inert gas, 191 mg of (S)-3-(2-chlorophenyl)-3-(5,5,6,6-tetramethyl-4,4-dioxo-5,6-dihydro-4H-4lambda*6*-1,4,3-oxathiazin-2-ylamino)propionic acid methyl ester were dissolved in 4 ml of THF, and 0.66 ml of a 3 N solution of methylmagnesium bromide in diethyl ether was added. After stirring at room temperature for 30 minutes, the reaction solution was concentrated by rotary evaporation and the residue was purified in a purification laboratory by means of preparative HPLC. After lyophilization of the product-containing fractions, the product (35 mg) was thus obtained with a molecular weight of 402.9 g/mol (C₁₈H₂₇ClN₂O₄S); MS (EST): m/e=403 (M+H⁺).

[(S)-1-(2-Chlorophenyl)ethyl]-(5,5,6,6-tetramethyl-4,4-dioxo-5,6-dihydro-4H-4lambda6-[1,4,3]oxathiazin-2-yl)amine

Under inert gas, 200 mg of 5,5,6,6-tetramethyl-2-(4-nitrophenoxy)-5,6-dihydro-1,4,3-oxathiazine 4,4-dioxide and 176 mg of (S)-1-(2-chlorophenyl)ethylamine hydrochloride were dissolved in 1 ml of dichloromethane and 0.21 ml of N,N-diisopropylethylamine, and the mixture was stirred at room temperature for 16 hours. Subsequently, the reaction solution was diluted with 50 ml of dichloromethane, washed three times with 30 ml of 10% aqueous ammonia solution, three times with 30 ml of 1 N aqueous hydrochloric acid and with 30 ml of saturated aqueous sodium hydrogencarbonate solution, dried over Na₂SO₄ and concentrated by rotary evaporation. This gave the product (171 mg) with a molecular weight of 344.94 g/mol (C₁₅H₂₁ClN₂O₃S); MS (ESI): m/e=345 (M+H⁺).

(1R,3R)-3-(5,5,6,6-Tetramethyl-4,4-dioxo-5,6-dihydro-4H-4lambda6-[1,4,3]oxathiazin-2-ylamino)cyclohexanol

The amine used was prepared as follows:

(1R,3R)-3-Aminocyclohexanol

P. Bernardelli, M. Bladon, E. Lorthiois, A. C. Manage, F. Vernige, R. Wrigglesworth, Tetrahedron: Asymmetry 15 2004, 1451-1455

L. M. Levy, G. de Gonzalo, V. Gotor, Tetrahedron: Asymmetry 15 2004, 2051-2056

While cooling with ice, 200 mg of 5,5,6,6-tetramethyl-2-(4-nitrophenoxy)-5,6-dihydro-1,4,3-oxathiazine 4,4-dioxide and 88 mg of (1R,3R)-3-aminocyclohexanol were dissolved in 3 ml of dichloromethane and 0.26 ml of N,N-diisopropylethylamine, and the mixture was stirred at room temperature for 1.5 hours. Subsequently, the reaction solution was concentrated by rotary evaporation and the residue was purified in a purification laboratory by means of preparative HPLC. After lyophilization of the product-containing fractions, the product (136 mg) was thus obtained with a molecular weight of 304.4 g/mol (C₁₃H₂₄N₂O₄S); MS (ESI): m/e=305 (M+H⁺).

(4-Fluorobicyclo[2.2.2]oct-1-yl)-(5,5,6,6-tetramethyl-4,4-dioxo-5,6-dihydro-4H-4lambda6-[1,4,3]oxathiazin-2-yl)amine

The reactant, 2-(2,6-difluorophenoxy)-5,5,6,6-tetramethyl-5,6-dihydro-1,4,3-oxathiazine 4,4-dioxide, was synthesized analogously to the already described preparation of 5,5,6,6-tetramethyl-2-(4-nitrophenoxy)-5,6-dihydro-1,4,3-oxathiazine 4,4-dioxide.

The amine used was prepared as follows:

Amino-4-fluorobicyclo[2.2.2]octane

Journal of Organic Chemistry 1982, 47(15), 2951-2957.

120 mg of 2-(2,6-difluorophenoxy)-5,5,6,6-tetramethyl-5,6-dihydro-1,4,3-oxathiazine 4,4-dioxide and 67 mg of amino-4-fluorobicyclo[2.2.2]octane were dissolved in 2 ml of dichloromethane and 0.13 ml of N,N-diisopropylethylamine, and the mixture was stirred at room temperature for 15 minutes. Subsequently, the reaction solution was diluted with 50 ml of dichloromethane, washed twice with 50 ml of 0.1 N aqueous sodium hydroxide solution, twice with 50 ml of 1 N aqueous hydrochloric acid and with 50 ml of saturated aqueous sodium hydrogencarbonate solution, dried over Na₂SO₄ and concentrated by rotary evaporation. The residue was purified in a purification laboratory by means of preparative HPLC. After lyophilization of the product-containing fractions, the product (12.1 mg) was thus obtained with a molecular weight of 332.4 g/mol (C₁₅H₂₅FN₂O₃S); MS (ESI): m/e=333 (M+H+).

Compounds 24-26 were synthesized by this preparation method:

-   (S)-3-Phenyl-3-(5,5,6,6-tetramethyl-4,4-dioxo-5,6-dihydro-4H-4lambda6-[1,4,3]oxathiazin-2-ylamino)propan-1-ol -   (S)-3-(2-Chlorophenyl)-3-(5,5,6,6-tetramethyl-4,4-dioxo-5,6-dihydro-4H-4lambda6-[1,4,3]oxathiazin-2-ylamino)propan-1-ol -   (S)-3-(4-Fluorophenyl)-3-(5,5,6,6-tetramethyl-4,4-dioxo-5,6-dihydro-4H-4lambda6-[1,4,3]oxathiazin-2-ylamino)propan-1-ol -   (S)-2-Methyl-4-pyridin-3-yl-4-(5,5,6,6-tetramethyl-4,4-dioxo-5,6-dihydro-4H-4lambda6-[1,4,3]oxathiazin-2-ylamino)butan-2-ol

-   (S)-3-Pyridin-3-yl-3-(5,5,6,6-tetramethyl-4,4-dioxo-5,6-dihydro-4H-4lambda*6*-1,4,3-oxathiazin-2-ylamino)propionic     acid methyl ester trifluoroacetate

195 mg of 2-(2,6-difluorophenoxy)-5,5,6,6-tetramethyl-5,6-dihydro-1,4,3-oxathiazine 4,4-dioxide and 132 mg of methyl (S)-3-amino-3-pyridin-3-ylpropionate were dissolved in 2 ml of dichloromethane and 0.26 ml of N,N-diisopropylethylamine, and the mixture was stirred at room temperature for 48 hours. After concentration by rotary evaporation, the residue was purified in a purification laboratory by means of preparative HPLC. After lyophilization of the product-containing fractions, the trifluoroacetate of the product (97.4 mg) was thus obtained with a molecular weight of 369.4 g/mol (C₁₆H₂₃N₃O₅S); MS (ESI): m/e=370 (M+H⁺).

(S)-2-Methyl-4-pyridin-3-yl-4-(5,5,6,6-tetramethyl-4,4-dioxo-5,6-dihydro-4H-4lambda6-[1,4,3]oxathiazin-2-ylamino)butan-2-ol

Under inert gas, 50 mg of (S)-3-pyridin-3-yl-3-(5,5,6,6-tetramethyl-4,4-dioxo-5,6-dihydro-4H-4lambda*6*-1,4,3-oxathiazin-2-ylamino)propionic acid methyl ester trifluoroacetate were dissolved in 2 ml of THF, and 0.14 ml of a 3 N solution of methylmagnesium bromide in diethyl ether was added. After stirring at room temperature for 30 minutes, the reaction solution was admixed with 10 ml of water and 30 ml of ethyl acetate, and the organic phase was washed with 10 ml of saturated sodium chloride solution, dried over Na₂SO₄ and concentrated by rotary evaporation. The residue was purified in a purification laboratory by means of preparative HPLC, and the product-containing fractions were freed of the solvent under reduced pressure. This gave the product (25.1 mg) with a molecular weight of 369.5 g/mol (C₁₇H₂₇N₃O₄S); MS (ESI): m/e=370 (M+H⁺).

((S)-1-Phenylethyl)-(5,5,6,6-tetramethyl-4,4-dioxo-5,6-dihydro-4H-4lambda6-[1,4,3]oxathiazin-2-yl)amine

A mixture of 194 mg of 2-(2,6-difluorophenoxy)-5,5,6,6-tetramethyl-5,6-dihydro-1,4,3-oxathiazine 4,4-dioxide and 737 mg of (S)-1-phenylethylamine was stirred at room temperature for 16 hours and then purified in a purification laboratory by means of preparative HPLC. The combined product-containing fractions were alkalized with 25% aqueous ammonia solution and extracted three times with 30 ml of ethyl acetate, and the combined organic phases were dried over MgSO₄ and concentrated by rotary evaporation. This gave the product (96 mg) with a molecular weight of 310.4 g/mol (C₁₅H₂₂N₂O₃S); MS (ESI): m/e=311 (M+H⁺).

2-(4-Fluorophenyl)-2-(5,5,6,6-tetramethyl-4,4-dioxo-5,6-dihydro-4H-4lambda6-[1,4,3]oxathiazin-2-ylamino)ethanesulfonamide

N-tert-Butylmethanesulfonamide

To a solution of 7.74 ml of methanesulfonyl chloride in 100 ml of dichloromethane were added dropwise, at a temperature of 0° C., 23.12 ml of tert-butylamine. On completion of addition, the precipitate was filtered off and the filtrate was washed with 100 ml of 1 N aqueous hydrochloric acid, the organic phase was dried over MgSO₄ and the solvent was removed under reduced pressure. The product (14.70 g) was obtained with a molecular weight of 151.2 g/mol (C₅H₁₃NO₂S).

N-(tert-Butyl)-2-(4-fluorophenyl)-2-oxoethanesulfonamide

Under inert gas, 1.00 g of N-tert-butylmethanesulfonamide were initially charged in 20 ml of THF and then, at a temperature of −78° C., 9.00 ml of a 1.6 N butyllithium solution in hexane were added dropwise. After stirring with ice cooling for 5 minutes, the mixture was cooled again to −78° C., and a solution, likewise cooled to −78° C., of 1.33 ml of methyl 4-fluorobenzoate in 10 ml of THF was added dropwise. The mixture was allowed to come to room temperature and stirred for 1 hour. The reaction solution was admixed with 0.82 ml of acetic acid, diluted with 50 ml of ethyl acetate, and washed with 40 ml of saturated aqueous sodium hydrogencarbonate solution and 40 ml of saturated aqueous sodium chloride solution. The organic phase was dried over MgSO₄ and concentrated by rotary evaporation. The crude product was purified by means of normal phase chromatography using a Flashmaster with an n-heptane/ethyl acetate gradient. The product-containing fractions were combined and concentrated by rotary evaporation. This gave the product (662 mg) with a molecular weight of 273.3 g/mol (C₁₂H₁₆FNO₃S).

N-(tert-Butyl)-2-amino-2-(4-fluorophenyl)ethanesulfonamide

A solution of 0.66 g of N-(tert-butyl)-2-(4-fluorophenyl)-2-oxoethanesulfonamide, 1.85 g of ammonium acetate and 0.17 g of sodium cyanoborohydride in 12 ml of methanol was stirred at 60° C. for 17 hours. After the removal of the solvent under reduced pressure, the residue was taken up in 50 ml of ethyl acetate and washed twice with 30 ml of 0.5 N aqueous sodium hydroxide solution and 30 ml of saturated aqueous sodium chloride solution. The organic phase was dried over MgSO₄ and concentrated by rotary evaporation. The crude product was subjected to a chiral separation.

Column: Chiralpak AD-H/39, 5 μm, 250×4.6 mm

Eluent: ethanol:methanol 1:1+0.1% diethylamine (30° C., flow rate 1 ml/min)

Retention times: 4.787 min (enantiomer 1), 10.635 min (enantiomer 2)

The product-containing fractions were in each case combined and concentrated by rotary evaporation. The two products (enantiomer 1: 269 mg/enantiomer 2: 241 mg) were thus obtained with a molecular weight of 274.4 g/mol (C₁₂H₁₉FN₂O₂S); MS (ESI): m/e=275 (M+H⁺). The absolute configuration of the two products was not determined

2-(4-Fluorophenyl)-2-(5,5,6,6-tetramethyl-4,4-dioxo-5,6-dihydro-4H-4lambda6-[1,4,3]oxathiazin-2-ylamino)ethanesulfonamide

50 mg of N-(tert-Butyl)-2-amino-2-(4-fluorophenyl)ethanesulfonamide enantiomer 1 and 58 mg of 2-(2,6-difluorophenoxy)-5,5,6,6-tetramethyl-5,6-dihydro-1,4,3-oxathiazine 4,4-dioxide were dissolved in 1 ml of dichloromethane, and the mixture was stirred at room temperature for 5 hours. The completeness of the conversion was checked by LCMS. Since no conversion had taken place yet, 60 μl of N,N-diisopropylethylamine were added and the mixture was stirred at room temperature overnight. The reaction solution was diluted with 20 ml of ethyl acetate and washed with 10 ml of 0.1 N hydrochloric acid and 10 ml of saturated aqueous sodium chloride solution. The organic phase was dried over MgSO₄ and concentrated by rotary evaporation. The residue was dissolved in 1 ml of trifluoroacetic acid and dissolved at room temperature for 20 hours. After the removal of the solvent under reduced pressure, the crude product was purified in a purification laboratory by means of preparative HPLC. After lyophilization of the product-containing fractions, the product (25.8 mg) was obtained with a molecular weight of 407.5 g/mol (C₁₅H₂₂FN₃O₅S); MS (ESI): m/e=408 (M+H+). 

1. A compound of the formula I

in which L is R1, —CH(R10)(R11); R10, R11 are each independently H, F, Cl, Br, I, OH, CF₃, CHF₂, CH₂F, NO₂, CN, OCF₃, OCHF₂, O—(C₁-C₆)-alkyl, (C₁-C₆)-alkyl, NH₂, NH(C₁-C₆)-alkyl, N((C₁-C₆)-alkyl)₂, COOH, COO—(C₁-C₆)-alkyl, CONH₂, CONH(C₁-C₆)-alkyl, CON((C₁-C₆)-alkyl)₂, SF₅, (C₁-C₆)-alkylene-(R6), (C₃-C₈)-cycloalkylene-(R6), (C₁-C₆)-alkylene-(C₃-C₈)-cycloalkylene-(R6), (C₆-C₁₀-aryl, (C₁-C₆)-alkylene-(C₆-C₁₀-aryl, —(C₆-C₁₀)-heteroaryl, (C₁-C₆)-alkylene-(C₆-C₁₀-heteroaryl; where the aryl radical or heteroaryl radical may be mono- to trisubstituted by F, Cl, Br, I, OH, CF₃, CHF₂, CH₂F, NO₂, CN, OCF₃, OCHF₂, O—(C₁-C₆)-alkyl, (C₁-C₆)-alkyl, NH₂, NH(C₁-C₆)-alkyl, N((C₁-C₆)-alkyl)₂, SO₂—CH₃, SO₂—NH₂, SO₂—NH(C₁-C₆)-alkyl, SO₂—N((C₁-C₆)-alkyl)₂, COOH, COO—(C₁-C₆)-alkyl, CONH₂, CONH(C₁-C₆)-alkyl, CON((C₁-C₆)-alkyl)₂, SF₅; R6 is OH, CF₃, CHF₂, CH₂F, NO₂, CN, OCF₃, OCHF₂, O—(C₁-C₆)-alkyl, (C₁-C₆)-alkyl, NH₂, NH(C₁-C₆)-alkyl, N((C₁-C₆)-alkyl)₂, SO₂—CH₃, SO₂—NH₂, SO₂—NH(C₁-C₆)-alkyl, SO₂—N((C₁-C₆)-alkyl)₂, COOH, COO—(C₁-C₆)-alkyl, CONH₂, CONH(C₁-C₆)-alkyl, CON((C₁-C₆)-alkyl)₂, SF₅; R1 is (C₆-C₁₀)-aryl, (C₃-C₈)-cycloalkyl, (C₃-C₈)-carbocyclyl, where the aryl radical, cycloalkyl radical or carbocyclyl radical may be mono- to trisubstituted by F, Cl, Br, I, OH, CF₃, CHF₂, CH₂F, NO₂, CN, OCF₃, OCHF₂, O—(C₁-C₆)-alkyl, (C₁-C₆)-alkyl, NH₂, NH(C₁-C₆)-alkyl, N((C₁-C₆)-alkyl)₂, SO₂—CH₃, SO₂—NH₂, SO₂—NH(C₁-C₆)-alkyl, SO₂—N((C₁-C₆)-alkyl)₂, COOH, COO—(C₁-C₆)-alkyl, CONH₂, CONH(C₁-C₆)-alkyl, CON((C₁-C₆)-alkyl)₂, SF₅; R2, R3, R4, R5 are each independently (C₁-C₆)-alkyl, CF₃, CHF₂, CH₂F, (C₁-C₆)-alkylene-OH, (C₁-C₆)-alkylene-O—(C₁-C₆)-alkyl, (C₆-C₁₀)-aryl, (C₁-C₆)-alkylene-O—(C₆-C₁₀)-aryl, or R2 and R3, or R4 and R5, together with the carbon atom to which they are bonded form a 3-8-membered saturated carbocyclic or heterocyclic ring which may contain up to 2 further heteroatoms from the group of N, O and S; and pharmaceutically acceptable salts thereof.
 2. The compound of claim 1, wherein L is R1, —CH(R10)(R11); R10, R11 are each independently F, Cl, Br, I, OH, CF₃, CHF₂, CH₂F, NO₂, CN, OCF₃, OCHF₂, O—(C₁-C₆)-alkyl, (C₁-C₆)-alkyl, NH₂, NH(C₁-C₆)-alkyl, N((C₁-C₆)-alkyl)₂, COOH, COO—(C₁-C₆)-alkyl, CONH₂, CONH(C₁-C₆)-alkyl, CON((C₁-C₆)-alkyl)₂, SF₅, (C₁-C₆)-alkylene-(R6), (C₃-C₈)-cycloalkylene-(R6), (C₁-C₆)-alkylene-(C₃-C₈)-cycloalkylene-(R6), (C₆-C₁₀)-aryl, (C₁-C₆)-alkylene-(C₆-C₁₀)-aryl, —(C₆-C₁₀)-heteroaryl, (C₁-C₆)-alkylene-(C₆-C₁₀)-heteroaryl; where the aryl radical or heteroaryl radical may be mono- to trisubstituted by F, Cl, Br, I, OH, CF₃, CHF₂, CH₂F, NO₂, CN, OCF₃, OCHF₂, O—(C₁-C₆)-alkyl, (C₁-C₆)-alkyl, NH₂, NH(C₁-C₆)-alkyl, N((C₁-C₆)-alkyl)₂, SO₂—CH₃, SO₂—NH₂, SO₂—NH(C₁-C₆)-alkyl, SO₂—N((C₁-C₆)-alkyl)₂, COOH, COO—(C₁-C₆)-alkyl, CONH₂, CONH(C₁-C₆)-alkyl, CON((C₁-C₆)-alkyl)₂, SF₅; R6 is OH, CF₃, CHF₂, CH₂F, NO₂, CN, OCF₃, OCHF₂, O—(C₁-C₆)-alkyl, (C₁-C₆)-alkyl, NH₂, NH(C₁-C₆)-alkyl, N((C₁-C₆)-alkyl)₂, SO₂—CH₃, SO₂—NH₂, SO₂—NH(C₁-C₆)-alkyl, SO₂—N((C₁-C₆)-alkyl)₂, COOH, COO—(C₁-C₆)-alkyl, CONH₂, CONH(C₁-C₆)-alkyl, CON((C₁-C₆)-alkyl)₂, SF₅; R1 is (C₃-C₈)-cycloalkyl, (C₃-C₈)-carbocyclyl, where the cycloalkyl radical or carbocyclyl radical may be mono- to trisubstituted by F, Cl, Br, I, OH, CF₃, CHF₂, CH₂F, NO₂, CN, OCF₃, OCHF₂, O—(C₁-C₆)-alkyl, (C₁-C₆)-alkyl, NH₂, NH(C₁-C₆)-alkyl, N((C₁-C₆)-alkyl)₂, SO₂—CH₃, SO₂—NH₂, SO₂—NH(C₁-C₆)-alkyl, SO₂—N((C₁-C₆)-alkyl)₂, COOH, COO—(C₁-C₆)-alkyl, CONH₂, CONH(C₁-C₆)-alkyl, CON((C₁-C₆)-alkyl)₂, SF₅; R2, R3, R4, R5 are each independently (C₁-C₆)-alkyl, CF₃, (C₁-C₆)-alkylene-O—(C₁-C₆)-alkyl or R2 and R3, or R4 and R5, together with the carbon atom to which they are bonded form a 3-8-membered saturated carbocyclic or heterocyclic ring which may contain up to 2 further heteroatoms from the group of N, O and S; and pharmaceutically acceptable salts thereof.
 3. The compound of claim 1, wherein L is R1, —CH(R10)(R11); R10, R11 are each independently (C₁-C₆)-alkyl, (C₁-C₆)-alkylene-(R6), (C₆-C₁₀)-aryl, (C₆-C₁₀)-heteroaryl; where the aryl radical or heteroaryl radical may be mono- to trisubstituted by F, Cl, Br, I, OH, CF₃, CHF₂, CH₂F, NO₂, CN, OCF₃, OCHF₂, O—(C₁-C₆)-alkyl, (C₁-C₆)-alkyl, NH₂, NH(C₁-C₆)-alkyl, N((C₁-C₆)-alkyl)₂, SO₂—CH₃, SO₂—NH₂, SO₂—NH(C₁-C₆)-alkyl, SO₂—N((C₁-C₆)-alkyl)₂, COOH, COO—(C₁-C₆)-alkyl, CONH₂, CONH(C₁-C₆)-alkyl, CON((C₁-C₆)-alkyl)₂, SF₅; R6 is OH, SO₂—NH₂; R1 is (C₃-C₈)-cycloalkyl, (C₃-C₈)-carbocyclyl, where the cycloalkyl radical or carbocyclyl radical may be mono- to trisubstituted by F, Cl, Br, I, OH, CF₃, CHF₂, CH₂F, NO₂, CN, OCF₃, OCHF₂, O—(C₁-C₆)-alkyl, (C₁-C₆)-alkyl, NH₂, NH(C₁-C₆)-alkyl, N((C₁-C₆)-alkyl)₂, SO₂—CH₃, SO₂—NH₂, SO₂—NH(C₁-C₆)-alkyl, SO₂—N((C₁-C₆)-alkyl)₂, COOH, COO—(C₁-C₆)-alkyl, CONH₂, CONH(C₁-C₆)-alkyl, CON((C₁-C₆)-alkyl)₂, SF₅; R2, R3, R4, R5 are each independently (C₁-C₆)-alkyl, CF₃, (C₁-C₆)-alkylene-O—(C₁-C₆)-alkyl or R2 and R3, or R4 and R5, together with the carbon atom to which they bonded form a 3-8-membered saturated carbocyclic or heterocyclic ring which may contain up to 2 further heteroatoms from the group of N, O and S; and pharmaceutically acceptable salts thereof.
 4. The compound of claim 1, wherein L is R1, —CH(R10)(R11); R10 is (C₁-C₆)-alkylene-(R6), R11 is (C₆-C₁₀)-aryl, (C₆-C₁₀)-heteroaryl, where the aryl radical or heteroaryl radical may be mono- to trisubstituted by F, Cl, Br, CN; R6 is OH, SO₂—NH₂; R1 is (C₃-C₈)-cycloalkyl, (C₃-C₈)-carbocyclyl, where the cycloalkyl radical or carbocyclyl radical may be mono- to trisubstituted by F, Cl, Br, OH; R2, R3 are each independently (C₁-C₆)-alkyl, CF₃, (C₁-C₆)-alkylene-O—(C₁-C₆)-alkyl or R2 and R3 together with the carbon atom to which they bonded form a 3-8-membered saturated carbocyclic or heterocyclic ring which may contain up to 2 further heteroatoms from the group of N, O and S; R4, R5 are each independently (C₁-C₆)-alkyl, CF₃, (C₁-C₆)-alkylene-O—(C₁-C₆)-alkyl, or R4 and R5 together with the carbon atom to which they are bonded form a 3-8-membered saturated carbocyclic ring; and pharmaceutically acceptable salts thereof.
 5. (canceled)
 6. A pharmaceutical composition comprising the compound of claim 1, or pharmaceutically acceptable salts thereof, and a pharmaceutically acceptable carrier and/or excipient.
 7. The pharmaceutical composition of claim 6, further comprising at least one further active ingredient.
 8. The pharmaceutical composition of claim 7, wherein said active ingredient is one or more antidiabetics, active hypoglycemic ingredients, HMG-CoA reductase inhibitors, cholesterol absorption inhibitors, PPAR gamma agonists, PPAR alpha agonists, PPAR alpha/gamma agonists, PPAR delta agonists, fibrates, MTP inhibitors, bile acid absorption inhibitors, CETP inhibitors, polymeric bile acid adsorbers, LDL receptor inducers, ACAT inhibitors, antioxidants, lipoprotein lipase inhibitors, ATP citrate lyase inhibitors, squalene synthetase inhibitors, lipoprotein(a) antagonists, HM74A receptor agonists, lipase inhibitors, insulins, sulfonylureas, biguanides, meglitinides, thiazolidinediones, α-glucosidase inhibitors, active ingredients which act on the ATP-dependent potassium channel of the beta cells, glycogen phosphorylase inhibitors, glucagon receptor antagonists, activators of glucokinase, inhibitors of gluconeogenesis, inhibitors of fructose 1,6-biphosphatase, modulators of glucose transporter 4, inhibitors, inhibitors of glutamine: fructose-6-phosphate amidotransferase, inhibitors of dipeptidylpeptidase IV, inhibitors of 11-beta-hydroxysteroid dehydrogenase 1, inhibitors of protein tyrosine phosphatase 1B, modulators of the sodium-dependent glucose transporter 1 or 2, GPR40 modulators, inhibitors of hormone-sensitive lipase, inhibitors of acetyl-CoA carboxylase, inhibitors of phosphoenolpyruvate carboxykinase, inhibitors of glycogen synthase kinase-3 beta, inhibitors of protein kinase C beta, endothelin-A receptor antagonists, inhibitors of I kappaB kinase, modulators of the glucocorticoid receptor, CART agonists, NPY agonists, MC4 agonists, orexin agonists, H3 agonists, TNF agonists, CRF agonists, CRF BP antagonists, urocortin agonists, β3 agonists, CB1 receptor antagonists, MSH (melanocyte-stimulating hormone) agonists, CCK agonists, serotonin reuptake inhibitors, mixed serotoninergic and noradrenergic compounds, 5HT agonists, bombesin agonists, galanin antagonists, growth hormones, growth hormone-releasing compounds, TRH agonists, decoupling protein 2 or 3 modulators, leptin agonists, DA agonists, lipase/amylase inhibitors, PPAR modulators, RXR modulators or TR β agonists or amphetamines.
 9. A process for preparing a pharmaceutical composition comprising mixing the compound of claim 1 with a pharmaceutically suitable carrier and converting said mixture to a form suitable for administration.
 10. A method of treating hyperglycemia comprising administering to a patient in need thereof a therapeutically effective amount of the pharmaceutical composition of claim
 6. 11. A method of treating diabetes comprising administering to a patient in need thereof a therapeutically effective amount of the pharmaceutical composition of claim
 6. 12. A method of treating insulin resistance comprising administering to a patient in need thereof a therapeutically effective amount of the pharmaceutical composition of claim
 6. 13. A kit consisting of separate packages of a) an effective amount of the compound of claim 1 and b) an effective amount of a further active medicament ingredient. 